Prosecution Insights
Last updated: April 19, 2026
Application No. 18/283,677

ECHO SUPPRESSING DEVICE, ECHO SUPPRESSING METHOD, AND ECHO SUPPRESSING PROGRAM

Non-Final OA §112
Filed
Sep 22, 2023
Examiner
HASHEM, LISA
Art Unit
2692
Tech Center
2600 — Communications
Assignee
Transtron Inc.
OA Round
1 (Non-Final)
74%
Grant Probability
Favorable
1-2
OA Rounds
3y 4m
To Grant
87%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allow Rate
263 granted / 355 resolved
+12.1% vs TC avg
Moderate +13% lift
Without
With
+12.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
11 currently pending
Career history
366
Total Applications
across all art units

Statute-Specific Performance

§101
7.0%
-33.0% vs TC avg
§103
18.1%
-21.9% vs TC avg
§102
32.5%
-7.5% vs TC avg
§112
30.5%
-9.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 355 resolved cases

Office Action

§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 (IDS) submitted on: 9-22-2023, 7-9-2024, and 1-22-2025 are considered by the examiner. 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. Claims 1-10 and 12 are 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. It is not clear if ‘an estimated echo function’ in line 5 of claim 1 is the same as ‘a function representing the estimated echo’ in line 18 of claim 1. Appropriate action is required. It is not clear if ‘a function representing the estimated echo’ in lines 3-4 of claim 2 is the same as ‘an estimated echo function’ in line 5 of claim 1. Appropriate action is required. It is not clear if ‘a function representing the estimated echo’ in line 3 of claim 8 is the same as ‘an estimated echo function’ in line 5 of claim 1. Appropriate action is required. It is not clear if ‘a function representing the estimated echo’ in line 3 of claim 9 is the same as ‘an estimated echo function’ in line 5 of claim 1. Appropriate action is required. Claim 1 recites the limitation "the estimated echo" in line 18. There is insufficient antecedent basis for this limitation in the claim. Claim 2 recites the limitation "the estimated echo" in line 4. There is insufficient antecedent basis for this limitation in the claim. Claim 8 recites the limitation "the estimated echo" in line 3. There is insufficient antecedent basis for this limitation in the claim. Claim 9 recites the limitation "the estimated echo" in line 3. There is insufficient antecedent basis for this limitation in the claim. Claim 10 recites the limitation "the estimated echo" in line 11. There is insufficient antecedent basis for this limitation in the claim. Claim 12 recites the limitation "the estimated echo" in lines 8-9. There is insufficient antecedent basis for this limitation in the claim. Allowable Subject Matter Claims 1, 2, 8, 9, 10, and 12 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. Claims 3, 4, 5, 6, and 7 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. The prior art of EP 3633865A1 by Transtron Inc and WO 2019/239977A1 by Transtron Inc cited in the IDS filed on 7-9-2024 by Applicant do not disclose the claimed limitations in claims 1, 10, and 12. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. See PTO-892 Form. Any response to this action should be mailed to: Commissioner for Patents P.O. Box 1450 Alexandria, VA 22313-1450 Or faxed to: (571) 273-8300 (for formal communications intended for entry) Or call: (571) 272-2600 (for customer service assistance) Any inquiry concerning this communication or earlier communications from the examiner should be directed to LISA HASHEM whose telephone number is 571-272-7542. The examiner can normally be reached on Monday and Thursday, 10 a.m. to 7 p.m. EST. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Carolyn Edwards can be reached on 571-270-7136. Information regarding the status of an application may be obtained from Patent Center. Status information for published applications may be obtained from Patent Center. Status information for unpublished applications is available through Patent Center for authorized users only. Should you have questions about access to Patent Center, 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) Form at https://www.uspto.gov/patents/uspto-automated- interview-request-air-form. /LISA HASHEM/Primary Examiner, Art Unit 2692 /CAROLYN R EDWARDS/Supervisory Patent Examiner, Art Unit 2692
Read full office action

Prosecution Timeline

Sep 22, 2023
Application Filed
Feb 20, 2026
Non-Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12603959
METHOD AND ELECTRONIC DEVICE FOR REMOVING ECHO FLOWING IN DUE TO EXTERNAL DEVICE
2y 5m to grant Granted Apr 14, 2026
Patent 12581012
UNIQUE CALL PROGRESS TONE INVOCATION TIMER PER CLIENT OR ACCESS TYPE
2y 5m to grant Granted Mar 17, 2026
Patent 12581011
USER INTERFACE TO SELECT OR CHANGE CAPTION LANGUAGE FOR CAPTIONED TELEPHONE SERVICE SYSTEM
2y 5m to grant Granted Mar 17, 2026
Patent 12568175
SPEAKERPHONE AND SERVER DEVICE FOR ENVIRONMENT ACOUSTICS DETERMINATION AND RELATED METHODS
2y 5m to grant Granted Mar 03, 2026
Patent 12531943
Exercise-Based Call Processing Method, Apparatus, and Electronic Device
2y 5m to grant Granted Jan 20, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
74%
Grant Probability
87%
With Interview (+12.7%)
3y 4m
Median Time to Grant
Low
PTA Risk
Based on 355 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month