May 2026
U.S. Registered Intellectual Property Search Report
Nalu Medical, Inc.
I. Executive Summary
Deep Analysis sample
This sample report is based on a real, publicly announced transaction. Boston Scientific announced an agreement to acquire Nalu Medical on Oct. 17, 2025, for approximately $533 million for the remaining equity it did not already own ($600 million on a 100% basis before adjustments).
25patent results6 active issued patents
16 pending patent applications
16 pending patent applications
12trademark results2 active registered trademarks
1 pending trademark application
1 pending trademark application
0copyright resultsNo responsive copyright records
identified in the app export
identified in the app export
Key Takeaways
- Assignment records: The searched Nalu Medical portfolio shows no recorded USPTO assignment issues. IPIndex found no recorded security interests, liens, ownership disputes, or chain-of-title gaps in the patent or trademark assignment records.
- Patent prosecution: Five pending U.S. applications have recent office-action or applicant-response correspondence that should be reviewed before closing. Several other pending applications have moved to notice of allowance and fee-payment steps.
- Trademark prosecution: The live pending application for WHERE PAIN FLOWS, NALU GOES has completed review prior to publication and is scheduled for publication on May 19, 2026.
- Maintenance calendar: None of the six issued patents are currently open/due for their first maintenance fee window as of May 5, 2026; the earliest first payment window opens Nov. 28, 2026 for Patent No. 11,826,569. For trademarks, both live registrations have accepted Combined Declaration of Use and Incontestability (§8 and 15) filings, with Section 8/9 renewal windows opening Sep. 10, 2028 and Oct. 1, 2028.
- Copyright search: No responsive U.S. Copyright Office records were found for the searched target terms.
May 2026
II. Scope And Method
| Category | What We Search |
|---|---|
| Registered IP records | Official U.S. patent, trademark, and copyright records: USPTO patent results, USPTO trademark results, and U.S. Copyright Office records. |
| Current ownership | Current owner and applicant/registrant fields across responsive patent and trademark records, including entity-name variants surfaced in the export. |
| Chain-of-title analysis | Recorded patent and trademark assignment histories, assembled chronologically and reviewed for ownership-transfer gaps. |
| Lien and security-interest flags | Recorded assignment instruments that indicate security interests, liens, releases, or other encumbrance-related filings. |
| Deep Analysis checks | USPTO Patent File Wrapper office-action correspondence, patent maintenance-fee status, trademark prosecution status, trademark maintenance windows, assignment-document review, and successor/entity mapping where public records support it. |
Limitations
- This report is based on publicly available information as of the search date and may not include unpublished or non-public filings.
- Trademark and patent applications may be subject to office actions, opposition proceedings, or other prosecution events that could affect status.
- Copyright registrations may be subject to pending applications or disputes.
- Any fee or filing deadlines should be verified with official records before reliance.
May 2026
III. Patents
25 records · showing 1-13
| Application No. | Patent No. | Title | Status | Owner |
|---|---|---|---|---|
| 18/976997 | - | Stimulation Apparatus | Awaiting examination | Nalu Medical, Inc. |
| 18/969783 | - | Method And Apparatus For Neuromodulation Treatments Of Pain And Other Conditions | Awaiting examination | Nalu Medical, Inc. |
| 18/790766 | - | Medical Apparatus Including An Implantable System And An External System | Awaiting examination | Nalu Medical, Inc. |
| 18/453154 | - | Methods And Systems For Treating Pelvic Disorders And Pain Conditions | Office action outstanding | Nalu Medical, Inc. |
| 18/182293 | - | Method And Apparatus For Versatile Minimally Invasive Neuromodulators | Office action outstanding | Nalu Medical, Inc. |
| 18/174557 | - | Apparatus For Delivering Customized Stimulation Waveforms | Applicant response filed | Nalu Medical, Inc. |
| 17/383972 | - | Systems With Implanted Conduit Tracking | Applicant response filed | Nalu Medical, Inc. |
| 17/383985 | - | Stimulation Energy Systems With Current Steering | Applicant response filed | Nalu Medical, Inc. |
| 18/583698 | - | Devices And Methods For Positioning External Devices In Relation To Implanted Devices | Allowed | Nalu Medical, Inc. |
| 18/490419 | - | Apparatus With Sequentially Implanted Stimulators | Allowed | Nalu Medical, Inc. |
| 18/463225 | - | Apparatus For Delivering Enhanced Stimulation Waveforms | Allowed | Nalu Medical, Inc. |
| 18/314624 | - | Apparatus For Delivering Enhanced Stimulation Waveforms | Allowed | Nalu Medical, Inc. |
| 17/384020 | - | Stimulation Apparatus | Allowed | Nalu Medical, Inc. |
May 2026
III. Patents
25 records · showing 14-25
| Application No. | Patent No. | Title | Status | Owner |
|---|---|---|---|---|
| 18/046042 | 12,390,650 | Stimulation Apparatus | Issued | Nalu Medical, Inc. |
| 17/726378 | 12,502,543 | Apparatus For Peripheral Or Spinal Stimulation | Issued | Nalu Medical, Inc. |
| 17/489580 | 11,938,327 | Devices And Methods For Positioning External Devices In Relation To Implanted Devices | Issued | Nalu Medical, Inc. |
| 17/487535 | 11,826,569 | Apparatus With Sequentially Implanted Stimulators | Issued | Nalu Medical, Inc. |
| 17/383915 | 12,551,710 | Stimulation Apparatus | Issued | Nalu Medical, Inc. |
| 17/379928 | 12,201,829 | Stimulation Apparatus | Issued | Nalu Medical, Inc. |
| PCT/US2022/020452 | - | Apparatus For Delivering Enhanced Stimulation Waveforms | PCT application | Nalu Medical, Inc. |
| PCT/US2021/058673 | - | Apparatus For Delivering Enhanced Stimulation Waveforms | PCT application | Nalu Medical, Inc. |
| PCT/US2021/047815 | - | Apparatus For Delivering Customized Stimulation Waveforms | PCT application | Nalu Medical, Inc. |
| 17/412044 | - | Medical Apparatus Including An Implantable System And An External System | Abandoned application | Nalu Medical, Inc. |
| 63/625043 | - | Stimulation Apparatus | Expired provisional patent application | Nalu Medical, Inc. |
| 63/273068 | - | Apparatus For Delivering Enhanced Stimulation Waveforms | Expired provisional patent application | Nalu Medical, Inc. |
Assignment analysis
No security interests, liens, or chain-of-title gaps were identified in the assignment histories.
May 2026
IV. Patent Prosecution Review
Overview
| Application No. | Title | Latest USPTO Event | Latest Applicant Filing | Diligence Note |
|---|---|---|---|---|
| 18/976997 | Stimulation Apparatus | Jul. 27, 2025: New application routed to examiner | Jul. 23, 2025: Applicant Arguments/Remarks Made in an Amendment | New application, no office actions. |
| 18/969783 | Method And Apparatus For Neuromodulation Treatments Of Pain And Other Conditions | Jul. 17, 2025: New application routed to examiner | Jul. 14, 2025: Applicant Arguments/Remarks Made in an Amendment | New application, no office actions. |
| 18/790766 | Medical Apparatus Including An Implantable System And An External System | Mar. 1, 2026: New application routed to examiner | Mar. 19, 2025: Applicant Arguments/Remarks Made in an Amendment | New application, no office actions. |
| 18/583698 | Devices And Methods For Positioning External Devices In Relation To Implanted Devices | Feb. 11, 2026: Mail Notice of Allowance | Jun. 6, 2024: Applicant Arguments/Remarks Made in an Amendment | Notice of allowance and fees due. |
| 18/490419 | Apparatus With Sequentially Implanted Stimulators | Apr. 24, 2026: Mail Notice of Allowance | Mar. 23, 2026: Applicant Arguments/Remarks Made in an Amendment | Notice of allowance and fees due. |
| 18/463225 | Apparatus For Delivering Enhanced Stimulation Waveforms | Apr. 9, 2026: Mail Notice of Allowance | Feb. 20, 2026: Applicant Arguments/Remarks Made in an Amendment | Notice of allowance and fees due. |
| 18/453154 | Methods And Systems For Treating Pelvic Disorders And Pain Conditions | Oct. 16, 2025: Mail Non-Final Rejection | Sep. 16, 2025: Applicant Arguments/Remarks Made in an Amendment | Non-final rejection mailed Oct. 16, 2025; claims 41-50 rejected after applicant elected Group II. No later applicant response found. See attached Deep Analysis for Patent Prosecution Review. |
| 18/314624 | Apparatus For Delivering Enhanced Stimulation Waveforms | Feb. 24, 2026: Mail Notice of Allowance | Jan. 2, 2026: Amendment/Request for Reconsideration-After Non-Final Rejection | Notice of allowance and fees due. |
| 18/182293 | Method And Apparatus For Versatile Minimally Invasive Neuromodulators | Apr. 29, 2026: Mail Final Rejection (PTOL - 326) | Apr. 1, 2026: Applicant Arguments/Remarks Made in an Amendment | Final rejection mailed Apr. 29, 2026 after applicant's Apr. 1 response; examiner maintained obviousness rejections. See attached Deep Analysis for Patent Prosecution Review. |
| 18/174557 | Apparatus For Delivering Customized Stimulation Waveforms | Feb. 26, 2026: Post-response examiner routing | Feb. 11, 2026: Applicant Arguments/Remarks Made in an Amendment | Applicant responded Feb. 11, 2026 to a Sep. 10, 2025 non-final rejection; later routing events show examiner review continuing. See attached Deep Analysis for Patent Prosecution Review. |
| 17/383972 | Systems With Implanted Conduit Tracking | Feb. 27, 2026: Post-response examiner routing | Jun. 2, 2025: Applicant Arguments/Remarks Made in an Amendment | Applicant responded Jun. 2, 2025 to a Dec. 3, 2024 non-final rejection; Feb. 27, 2026 docketing is a routing event after the response. See attached Deep Analysis for Patent Prosecution Review. |
| 17/383985 | Stimulation Energy Systems With Current Steering | Mar. 2, 2026: Post-response examiner routing | Jun. 27, 2025: Applicant Arguments/Remarks Made in an Amendment | Applicant responded Jun. 27, 2025 to a Dec. 27, 2024 non-final rejection; Mar. 2, 2026 docketing is a routing event after the response. See attached Deep Analysis for Patent Prosecution Review. |
| 17/384020 | Stimulation Apparatus | Mar. 16, 2026: Mail Notice of Allowance | Jan. 27, 2026: Applicant Arguments/Remarks Made in an Amendment | Notice of allowance and fees due. |
May 2026
V. Patent Prosecution Review
Deep Analysis
This attachment summarizes the recent correspondence cycles that still warrant review in the file wrapper.
| Application No. | Recent Correspondence | High-Level Summary |
|---|---|---|
| 18/453154 | Oct. 16, 2025 non-final rejection | The pending claim set is split: claims 31-40 are withdrawn from examination after applicant's election of Group II, while claims 41-50 remain under active rejection. The Oct. 16, 2025 non-final office action rejects the examined claims under 35 U.S.C. 102 over Jiang et al., so the live issue is anticipation rather than a purely formal objection. No later applicant response was found in the pulled file-wrapper set, making this a priority closing item for deadline confirmation and claim-scope review. |
| 18/182293 | Apr. 1, 2026 response; Apr. 29, 2026 final rejection | Applicant's Apr. 1 response amended claims 193 and 195 after an examiner interview focused on the claimed warning-state limitation. The examiner issued a final rejection on Apr. 29, 2026, stating that the amended arguments were considered but not persuasive and maintaining obviousness rejections over Klostermann in view of Denker for claims 193-212. Because the rejection is final and follows a targeted amendment/interview cycle, the file should be reviewed for response options, appeal/RCE posture, and whether the rejected limitations are central to the target product story. |
| 18/174557 | Sept. 10, 2025 non-final rejection; Feb. 11, 2026 response | The Sept. 10, 2025 office action rejected claims 50-73 under 35 U.S.C. 102 over Mishra, putting the novelty of the stimulation-waveform delivery claims at issue. Applicant's Feb. 11, 2026 response reported an examiner interview and argued Mishra does not teach the claimed non-overlapping delivery of first and second stimulation waveforms; the response states that the examiner agreed those arguments overcame the current rejections. The current diligence point is to confirm whether the examiner accepts that characterization in the next action and whether any remaining claim objections survive. |
May 2026
V. Patent Prosecution Review
Deep Analysis continued
| Application No. | Recent Correspondence | High-Level Summary |
|---|---|---|
| 17/383972 | Dec. 3, 2024 non-final rejection; Jun. 2, 2025 response | The Dec. 3, 2024 non-final office action rejected claims 58-67 and 73-81 and also raised specification issues, including trade-name usage and claim-form clarity concerns. Applicant's Jun. 2, 2025 response amended multiple pending claims, added claims 90-91, cancelled claims 78-80, and addressed antecedent-basis/indefiniteness and specification objections. The response appears designed to narrow and clean up the active claim set, so follow-up review should focus on whether the amendments preserve commercially relevant coverage and whether the examiner maintains any prior-art or Section 112 issues. |
| 17/383985 | Dec. 27, 2024 non-final rejection; Jun. 27, 2025 response | The Dec. 27, 2024 non-final office action rejected claims 23, 28, 34-35, and 37-38 and withdrew other elected claims from consideration, leaving a narrower examined claim set. Applicant's Jun. 27, 2025 response amended claims 23, 28, 35, and 38, cancelled claim 37, added new claim 45, and addressed drawing/specification objections. The amendments narrow the active claim set for continued examination, so diligence should compare the amended claims against the product/readout materials and confirm whether the withdrawn claims remain available in a later divisional strategy. |
* In actual reports, relevant office actions and applicant responses are attached or linked with the delivered report package.
May 2026
VI. Patent Maintenance Calendar
Issued patents
None of the six issued patents are currently open/due for their first maintenance fee window as of May 5, 2026; the earliest first payment window opens Nov. 28, 2026 for Patent No. 11,826,569.
| Application No. | Patent No. | Issue Date | First Day | Surcharge Starts | Last Day | USPTO Status |
|---|---|---|---|---|---|---|
| 17/487535 | 11,826,569 | Nov. 28, 2023 | Nov. 28, 2026 | May 29, 2027 | Nov. 29, 2027 | Fee window not open/due |
| 17/489580 | 11,938,327 | Mar. 26, 2024 | Mar. 26, 2027 | Sep. 28, 2027 | Mar. 27, 2028 | Fee window not open/due |
| 17/379928 | 12,201,829 | Jan. 21, 2025 | Jan. 21, 2028 | Jul. 22, 2028 | Jan. 22, 2029 | Fee window not open/due |
| 18/046042 | 12,390,650 | Aug. 19, 2025 | Aug. 19, 2028 | Feb. 21, 2029 | Aug. 20, 2029 | Fee window not open/due |
| 17/726378 | 12,502,543 | Dec. 23, 2025 | Dec. 23, 2028 | Jun. 26, 2029 | Dec. 24, 2029 | Fee window not open/due |
| 17/383915 | 12,551,710 | Feb. 17, 2026 | Feb. 17, 2029 | Aug. 18, 2029 | Feb. 19, 2030 | Fee window not open/due |
May 2026
VII. Trademarks
12 records · 1 pending · 2 registered
| Serial No. | Reg. No. | Mark | Status | Owner |
|---|---|---|---|---|
| 99493242 | - | WHERE PAIN FLOWS, NALU GOES | Live | Nalu Medical, Inc. |
| 87501029 | 5,857,952 | NALU | Live | Nalu Medical, Inc. |
| 87460769 | 5,874,759 | NALU | Live | Nalu Medical, Inc. |
| 98246496 | - | DOT | Dead | Nalu Medical, Inc. |
| 88527511 | - | IPG | Dead | Nalu Medical, Inc. |
| 87524870 | - | LEAP | Dead | Nalu Medical, Inc. |
| 87524998 | - | LEAPSTIM | Dead | Nalu Medical, Inc. |
| 98392464 | - | MICRO-IPG | Dead | Nalu Medical, Inc. |
| 87501020 | - | NALU TRAIN STIMULATION | Dead | Nalu Medical, Inc. |
| 90907022 | - | NPOWER | Dead | Nalu Medical, Inc. |
| 88068076 | - | NPOWER TECHNOLOGY | Dead | Nalu Medical, Inc. |
| 87501013 | - | NTS | Dead | Nalu Medical, Inc. |
Trademark assignment analysis
No assignment records were found across the 12 trademark results. Ownership by Nalu Medical, Inc. confirmed.
May 2026
VIII. Trademark Prosecution Review
Pending mark
| Serial No. | Prosecution Event | Diligence Note |
|---|---|---|
| 99493242 | USPTO examiner completed review prior to publication. Status date: Apr. 27, 2026; publication date: May 19, 2026. | Application will publish for opposition on May 19, 2026. |
May 2026
IX. Trademark Maintenance Calendar
Registered marks
| Serial No. | Reg. No. | Mark | Current Status | Next Maintenance |
|---|---|---|---|---|
| 87501029 | 5,857,952 | NALU | Combined Declaration of Use and Incontestability (§8 and 15) filings accepted and acknowledged Dec. 14, 2025 | Section 8/9 renewal window opens Sep. 10, 2028; deadline Sep. 10, 2029; six-month grace period with surcharge ends Mar. 10, 2030 |
| 87460769 | 5,874,759 | NALU | Combined Declaration of Use and Incontestability (§8 and 15) filings accepted and acknowledged Dec. 15, 2025 | Section 8/9 renewal window opens Oct. 1, 2028; deadline Oct. 1, 2029; six-month grace period with surcharge ends Apr. 1, 2030 |
May 2026
X. Delivered With Actual Reports
Source package
Actual IPIndex reports are delivered with the underlying source materials needed to review and audit the findings.
- Excel or CSV exports of patent search results, including filing dates and issue dates where available.
- Excel or CSV exports of trademark search results, including filing dates and registration dates where available.
- Excel or CSV exports of copyright search results, including filing or registration dates where available.
- Copies or links for any relevant recent open patent office actions and applicant responses reviewed in the report.
- Links to published patent applications and issued patents.
- Links to TSDR pages for relevant trademark results.
- Links to USCO pages for relevant copyright results.