Prosecution Insights
Last updated: May 29, 2026
Application No. 18/386,391

APPARATUS AND METHODS TO CREATE POSTERIOR COMPRESSION AT THE BREAST DURING EXPRESSION OF BREAST MILK

Non-Final OA §102§112
Filed
Nov 02, 2023
Priority
Nov 13, 2015 — provisional 62/255,241 +2 more
Examiner
MEDWAY, SCOTT J
Art Unit
3783
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Willow Innovations Inc.
OA Round
1 (Non-Final)
67%
Grant Probability
Favorable
1-2
OA Rounds
1y 1m
Est. Remaining
90%
With Interview

Examiner Intelligence

Grants 67% — above average
67%
Career Allowance Rate
590 granted / 879 resolved
-2.9% vs TC avg
Strong +23% interview lift
Without
With
+23.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 8m
Avg Prosecution
33 currently pending
Career history
933
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
82.3%
+42.3% vs TC avg
§102
10.0%
-30.0% vs TC avg
§112
5.0%
-35.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 879 resolved cases

Office Action

§102 §112
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 . Information Disclosure Statement The information disclosure statement(s) filed on the record are in compliance with the content requirements of 37 CFR 1.97 and 37 CFR 1.98 and have been considered. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claim 21 is rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 21 is rejected for reciting "method comprises moving an anterior portion of the movable member away from the breast and moving a posterior portion of the movable member towards the breast in response to generation of negative pressure at the breast interface." This limitation is unclear in light of claim 1, which recites applying anterior compression to an anterior portion of the breast with a movable member of the flange. It appears that in Applicant's invention, anterior compression is applied when negative pressure is applied, so it is not clear how the movable member can also move away from the breast under the same negative pressure. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claims 20 and 24 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Grant et al (EP 0198469 B1, hereinafter "Grant"). Regarding claim 20, Grant discloses a method for expression of breast milk from a breast (see Fig. 6), the method comprising: providing a breast milk expression device comprising a breast interface (flange 40; see Fig. 6) and an actuatable assembly (such as a pump 12 capable of applying negative pressure through a line 22; the pump 12 is consistent with the broadest reasonable interpretation of "actuatable assembly", as reflected in para [0068] of the instant specification describing a pump mechanism as a type of actuatable assembly) operably coupled thereto; engaging the breast within a flange of the breast interface (see Fig. 6); actuating the actuatable assembly to generate negative pressure at the breast interface (i.e., applying negative pressure by use of the pump 12); applying anterior compression to an anterior portion of the breast with a movable member of the flange (anterior portion 38 of a movable member moves inwardly as indicated by arrows 88 when negative pressure is applied by the pump 12; see Figs. 6 and 7); and applying posterior compression to a posterior portion of the breast with the movable member of the flange by moving the movable member in response to the anterior compression of the breast against the movable member (posterior portion 32 of the movable member has a maximum thickness [42] and anterior portion 38 has a minimum thickness [44], so vacuum force is first transferred to the minimum thickness 44 to compress the breast at the anterior portion 38, and then additional vacuum force is transferred to the maximum thickness 42 in the posterior direction). Regarding claim 24, Grant teaches that the movable member is configured to apply the anterior compression and the posterior compression in a temporally coupled manner, such that, when the negative pressure is applied at the breast interface, the anterior compression is applied first and the posterior compression is applied second (the posterior portion 32 has a maximum thickness [42] and anterior portion 38 has a minimum thickness [44], so vacuum force is first transferred to the minimum thickness 44 to compress the breast at the anterior portion 38, and then additional vacuum force is transferred to the maximum thickness 42 in the posterior direction). Claims 20 and 24 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Silver et al (U.S. Pub. 2011/0071466 A1, hereinafter "Silver"). Regarding claim 20, Silver discloses a method for expression of breast milk from a breast, the method comprising: providing a breast milk expression device comprising a breast interface 114 (see Fig. 14) and an actuatable assembly 120 (see Figs. 14-15A) operably coupled thereto; engaging the breast within a flange of the breast interface (see Figs. 14-15); actuating the actuatable assembly to generate negative pressure at the breast interface (axial force is applied in directions 134/136, as shown in Figs. 14 and 15A); applying anterior compression to an anterior portion of the breast with a movable member of the flange (pushing movable member 114 in the direction indicated by arrow 136, as shown in Fig. 15A, causing the anterior portion to be compressed by a portion of the flange), applying posterior compression to a posterior portion of the breast with the movable member of the flange by moving the movable member in response to the anterior compression of the breast against the movable member (pushing movable member 114 in the opposite direction, indicated by arrow 134, causing the posterior portion 124 to be compressed). Regarding claim 21, Silver discloses the method of claim 20, further comprising moving an anterior portion of the movable member away from the breast and moving a posterior portion of the movable member towards the breast in response to generation of negative pressure at the breast interface (i.e., the same pushing of the movable member 114 in the opposite direction, indicated by arrow 134, causing the posterior portion 124 to be compressed, as discussed above). Regarding claim 24, Silver discloses the method as in claim 20, wherein the steps of applying the anterior compression and applying the posterior compression are temporally coupled, such that when negative pressure is generated at the breast interface, the anterior compression is applied first and the posterior compression is applied second (see temporality illustrated in Figs. 14 and 15A). Allowable Subject Matter Claims 22 and 23 are objected to for reciting allowable subject matter. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. See Notice of References Cited. Any inquiry concerning this communication or earlier communications from the examiner should be directed to SCOTT J MEDWAY whose telephone number is (571)270-3656. The examiner can normally be reached Monday through Friday, 8:30 AM to 5:00 PM. 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, Chelsea Stinson can be reached at (571) 270-1744. 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. /SCOTT J MEDWAY/Primary Examiner, Art Unit 3783 04/24/2026
Read full office action

Prosecution Timeline

Nov 02, 2023
Application Filed
May 13, 2026
Non-Final Rejection mailed — §102, §112 (current)

Precedent Cases

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
67%
Grant Probability
90%
With Interview (+23.2%)
3y 8m (~1y 1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 879 resolved cases by this examiner. Grant probability derived from career allowance rate.

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