Prosecution Insights
Last updated: May 29, 2026
Application No. 18/436,285

PROSTHETIC HAND

Non-Final OA §112
Filed
Feb 08, 2024
Priority
Jun 08, 2018 — GB 1809492.0 +2 more
Examiner
WILLSE, DAVID H
Art Unit
3774
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Epic Inventing Inc.
OA Round
3 (Non-Final)
68%
Grant Probability
Favorable
3-4
OA Rounds
1y 6m
Est. Remaining
81%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allowance Rate
393 granted / 582 resolved
-2.5% vs TC avg
Moderate +13% lift
Without
With
+13.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 10m
Avg Prosecution
21 currently pending
Career history
616
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
65.2%
+25.2% vs TC avg
§102
21.6%
-18.4% vs TC avg
§112
8.1%
-31.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 582 resolved cases

Office Action

§112
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 . Specification The disclosure is objected to because of the following informalities: On page 1, lines 3-4, “one or more or more” is not understood. On page 6, line 34, “include” lacks proper syntax. Appropriate correction is required. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. Claims 1-17 are rejected under 35 U.S.C. 112(a) as failing to comply with the written description requirement. The claims contain subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, at the time the application was filed, had possession of the claimed invention. In amended claim 1 at line 10, “rigidly fixed” is neither discussed nor fairly suggested in the original disclosure of parent application 16/973,180. Neither “rigid” and its variants nor “fix” and its variants appear anywhere in said original disclosure, and there is no illustration in the original drawings of mechanical components supposedly “rigidly fixed” to each other and no explanation in the original specification as to how “first portion 40a” (page 6, lines 3 and 11) or some other element of the linear actuator is “rigidly fixed” to digit 14, as alleged by Applicant. Instead, Applicant’s original specification teaches “resilient members or spring arrangements” (page 8, lines 14-15) to “accommodate any overload through resilient motion” (page 8, lines 9-10; emphasis added), which appears to be at odds with Applicant’s remarks and use of the terms “direct reaction” or “reacting directly” (Applicant’s reply of December 22, 2025: top half of page 8), neither of which terms exists in Applicant’s original disclosure. Because of the procedure for interpreting such claims as set forth in MPEP § 2163.06, prior art may be applicable to any subsequently amended claims. Response to Arguments Applicant’s comments have been considered and are adequately addressed above. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to David H. Willse, whose telephone number is 571-272-4762. The examiner can normally be reached on Monday through Thursday. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor Thomas Barrett can be reached at telephone number 571-272-4746. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://portal.uspto.gov/external/portal. Should you have questions about access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). 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. /DAVID H WILLSE/ Primary Examiner, Art Unit 3774
Read full office action

Prosecution Timeline

Feb 08, 2024
Application Filed
Apr 24, 2025
Non-Final Rejection mailed — §112
Jul 23, 2025
Response Filed
Oct 22, 2025
Final Rejection mailed — §112
Dec 22, 2025
Response after Non-Final Action
Jan 20, 2026
Request for Continued Examination
Feb 18, 2026
Response after Non-Final Action
Mar 11, 2026
Non-Final Rejection mailed — §112 (current)

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

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Prosecution Projections

3-4
Expected OA Rounds
68%
Grant Probability
81%
With Interview (+13.2%)
3y 10m (~1y 6m remaining)
Median Time to Grant
High
PTA Risk
Based on 582 resolved cases by this examiner. Grant probability derived from career allowance rate.

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