Prosecution Insights
Last updated: August 15, 2026
Application No. 16/773,524

BREAST PUMP SYSTEM AND METHODS

Non-Final OA §101§DP
Filed
Jan 27, 2020
Priority
Jul 22, 2014 — provisional 62/027,685 +3 more
Examiner
FREHE, WILLIAM R
Art Unit
3783
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Willow Innovations Inc.
OA Round
5 (Non-Final)
60%
Grant Probability
Moderate
5-6
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 60% of resolved cases
60%
Career Allowance Rate
235 granted / 391 resolved
-9.9% vs TC avg
Strong +42% interview lift
Without
With
+41.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
46 currently pending
Career history
446
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
55.1%
+15.1% vs TC avg
§102
13.6%
-26.4% vs TC avg
§112
25.8%
-14.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 391 resolved cases

Office Action

§101 §DP
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim Rejections - 35 USC § 101 35 U.S.C. 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. Claims 11-13, 15, 17-19, 22, 24-26, and 28-29 are rejected under 35 U.S.C. 101 because the claimed invention is directed to non-statutory subject matter. The claim(s) does/do not fall within at least one of the four categories of patent eligible subject matter because independent Claim 11 could be interpreted as positively claiming “milk from a breast of a user.” Examiner recommends using terms such as ‘configured’ or ‘designed’ to modify the structure that performs the function leading to “milk from a breast of a user.” Appropriate correction and/or clarification is required. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 11-13, 15, 17-19, 22, 24-26 and 28-29 are rejected on the ground of nonstatutory double patenting as being unpatentable over Claims 1-2, 5, 7-9, 12, 14-16 and 18 of USPN 10,589,009, hereinafter Patent '009, in view of Khalil et al. (USPGPub 2013/0023821). Re Claim 11: Claims 1, 9 and 27 of Patent '009 teach all the limitations of Claim 11. Claim 1 of Patent '009 teaches an automated system for controlling pumping cycles to pump milk from a breast of a user, the system comprising: a closed control system capable of sensing and controlling suction pressure waveforms to optimize filling milk ducts of a user; a breast adapter configured and dimensioned to form a seal with the breast, the breast adapter having a first open end that receives the breast and a second end opposite the first open end; a storage container for storing the milk pumped from the breast; a chamber positioned adjacent the breast adapter, the chamber having a face; a conduit providing a path from the chamber to the breast adapter near the second end of the breast adapter; and a compression member driven by the motor, the compression member moving perpendicular to the face of the chamber to accomplish compression and expansion of the chamber, wherein compression and expansion of the chamber creates a suction within the conduit which is applied to an interior of the breast adapter through the path from the chamber to the breast adapter near the second end of the breast adapter; wherein natural physiology of producing the milk is facilitated. Claim 9 of Patent '009 teaches a motor whereas Claim 27 of Patent '009 teaches the compression member driven by the motor. However, the claims of Patent '009 fail to teach the motor positioned adjacent the breast adapter. Khalil teaches a wearable breast pump system comprising a breast adapter (1) and a motor (8'), wherein the motor (8') is positioned adjacent the breast adapter (1), the configuration for providing a compact design with elements in a single wearable housing (Khalil Figs. 9 and 10; ¶ 0066-0069). Therefore, it would have been obvious to one or ordinary skill in the art before the effective filing date of the claimed invention to have had the motor of Patent '009 be positioned adjacent the breast adapter as disclosed by Khalil, the configuration for providing a compact design with elements in a single wearable housing (Khalil Figs. 9 and 10; ¶ 0066-0069). Re Claim 12: Claims 1, 9 and 27 of Patent '009 in view of Khalil teach all of the limitations of Claim 11. Claim 2 of Patent '009 teaches the automated system further comprising first and second pump systems, wherein pumping of the milk from a first breast is coordinated with pumping of the milk from a second breast. Re Claim 13: Claims 1, 9 and 27 of Patent '009 in view of Khalil teach all of the limitations of Claim 11. Claim 1 of Patent '009 teaches structure attached to the conduit to facilitate expansion of the conduit. Re Claim 15: Claims 1, 9 and 27 of Patent '009 in view of Khalil teach all of the limitations of Claim 11. Claim 5 of Patent '009 teaches wherein suction applied to the breast for expression of the milk comprises a first suction level, and wherein, during expulsing, a second suction level is maintained against the breast, the second suction level being lower than the first suction level, wherein the second suction level is a latch suction which is maintained throughout a pumping session. Re Claim 17: Claims 1, 9 and 27 of Patent '009 in view of Khalil teach all of the limitations of Claim 11. Claim 7 of Patent '009 teaches a sensor that senses flow rate. Re Claim 18: Claims 1, 9 and 27 of Patent '009 in view of Khalil teach all of the limitations of Claim 11. Claim 8 of Patent '009 teaches a display configured to display an image of a baby or project recorded sounds of the baby. Re Claim 19: Claims 1, 9 and 27 of Patent '009 in view of Khalil teach all of the limitations of Claim 11. Claim 9 of Patent '009 teaches a sensor for tracking a position of the motor. Re Claim 22: Claims 1, 9 and 27 of Patent '009 in view of Khalil teach all of the limitations of Claim 11. Claim 12 of Patent '009 teaches a controller, wherein the controller adaptively controls one or more of maximum suction pressure level, latch suction pressure level, suction pressure waveform over a pumping cycle, phases of extraction or feeding times, rest times, heating temperatures and times, vibration frequency and duration, and pumping session time. Re Claim 24: Claims 1, 9 and 27 of Patent '009 in view of Khalil teach all of the limitations of Claim 11. Claim 14 of Patent '009 teaches the chamber includes a non-circular region. Re Claim 25: Claims 1, 9 and 27 of Patent '009 in view of Khalil teach all of the limitations of Claim 11. Claim 15 of Patent '009 teaches wherein the chamber includes a section with opposing flat sections. Re Claim 26: Claims 1, 9 and 27 of Patent '009 in view of Khalil teach all of the limitations of Claim 11. Claim 16 of Patent '009 teaches a contouring shell configured to provide an appearance of a natural breast contour when the breast adapter is sealed to the breast. Re Claim 28: Claims 1, 9 and 27 of Patent '009 in view of Khalil teach all of the limitations of Claim 11. The claims of Patent '009 fail to teach a living gate configured to inhibit loss of the milk. Khalil teaches a wearable breast pump (Khalil Figs. 4 and 5) comprising a living gate (5), a duckbill valve, configured to inhibit loss of milk, and preventing milk from being suctioned into the pump (Khalil ¶ 0053 and 0058). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have included with the system of Patent '009 in view of Khalil a living gate configured to inhibit loss of milk as disclosed by Khalil for preventing milk from being suctioned into the pump (Khalil ¶ 0053 and 0058). Re Claim 29: Claims 1, 9 and 27 of Patent '009 in view of Khalil teach all of the limitations of Claim 11. Claim 18 of Patent '009 teaches wherein walls of the conduit are collapsible to suck out the milk remaining in the conduit. Terminal Disclaimer A terminal disclaimer may be effective to overcome a nonstatutory double patenting rejection over a reference patent (37 CFR 1.321(b) and (c)). A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional, the reply must be complete. MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/PatentForms. The filing date of the application will determine what form should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/TerminalDisclaimer. Response to Arguments Applicant’s arguments filed 04/10/2026 with respect to claim objections and 112 rejections have been fully considered and are persuasive. Due to clarifying amendments, the claim objections and 112 rejections are hereinafter withdrawn. As to the double patenting rejection, on Page 6 of applicant’s response, the applicant “respectfully traverses the double patenting rejections and reserves its right to file terminal disclaimers should the claims be deemed otherwise allowable.” Examiner is available at applicant’s leisure to discuss the present case during interview should applicant require. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to WILLIAM R FREHE whose telephone number is (571)272-8225. The examiner can normally be reached 10:30AM-7:30PM. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Kevin Sirmons can be reached at 571-272-4965. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /WILLIAM R FREHE/Examiner, Art Unit 3783 /KEVIN C SIRMONS/Supervisory Patent Examiner, Art Unit 3783
Read full office action

Prosecution Timeline

Show 5 earlier events
May 20, 2024
Response after Non-Final Action
Jun 19, 2024
Response Filed
Feb 26, 2025
Non-Final Rejection mailed — §101, §DP
Aug 12, 2025
Response Filed
Nov 14, 2025
Final Rejection mailed — §101, §DP
Apr 10, 2026
Request for Continued Examination
Apr 27, 2026
Response after Non-Final Action
Jun 17, 2026
Non-Final Rejection mailed — §101, §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12706208
SENSOR NETWORK FOR BREAST PUMPING MOTHERS
5y 10m to grant Granted Aug 11, 2026
Patent 12691221
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6y 5m to grant Granted Jul 28, 2026
Patent 12667524
NASOGASTRIC TUBE
5y 4m to grant Granted Jun 30, 2026
Patent 12667650
A BREAST MILK EXTRACTION KIT COMPRISING A BREAST MILK PUMP AND A PUMPING DEVICE
3y 5m to grant Granted Jun 30, 2026
Patent 12651656
Needle-Guidance Systems, Devices, and Method Thereof Including RFID Technology
5y 9m to grant Granted Jun 09, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

5-6
Expected OA Rounds
60%
Grant Probability
99%
With Interview (+41.8%)
3y 9m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 391 resolved cases by this examiner. Grant probability derived from career allowance rate.

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