Prosecution Insights
Last updated: July 17, 2026
Application No. 18/609,868

Control of a Combustion Device

Non-Final OA §112
Filed
Mar 19, 2024
Priority
Mar 24, 2023 — EU 23164184.6
Examiner
LIN, KO-WEI
Art Unit
Tech Center
Assignee
Siemens Aktiengesellschaft
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
9m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
619 granted / 818 resolved
+15.7% vs TC avg
Strong +20% interview lift
Without
With
+20.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
26 currently pending
Career history
834
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
72.3%
+32.3% vs TC avg
§102
2.7%
-37.3% vs TC avg
§112
23.9%
-16.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 818 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 . Specification The disclosure is objected to because of the following informalities: examiner recommend changing “first, positive” to “first positive”, “first, negative” to “first negative”, “second, positive” to “second positive”, and “second, negative” to “second negative”. Appropriate correction is required. Claim Objections Claims 4, 7-8, 11 and 14 are objected to because of the following informalities: For those claims, examiner recommend changing “first, positive” to “first positive”, “first, negative” to “first negative”, “second, positive” to “second positive”, and “second, negative” to “second negative”. Appropriate correction is required. 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 1-14 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. Claim 1 recites the limitation "the first signal and the second signal" in lines 13-14. There is insufficient antecedent basis for this limitation in the claim. It looks like these limitations refer to values of signals from the first combustion sensor and the second sensor (from lines 9 and 11 of claim 1). Since claim 4 recites the same limitation, Examiner recommend applicant to amend claim 1 lines 9-12 to “recording a first signal from the first combustion sensor; recording a second signal from the second sensor;” Claim 9 recites the limitation "the first combustion sensor" in lines 5-6. There is insufficient antecedent basis for this limitation in the claim. Claim 9 recites the limitation "the combustion device" in line 7. There is insufficient antecedent basis for this limitation in the claim. Claim 9 recites the limitation "the second sensor" in line 11. There is insufficient antecedent basis for this limitation in the claim. Claim 9 recites the limitation "the first signal and the second signal" in lines 12-13. There is insufficient antecedent basis for this limitation in the claim. (See claim 1 rejection for similar issue and recommendation for amendment). Claim 10 recites the limitation "the at least one duct" in line 4. There is insufficient antecedent basis for this limitation in the claim. Examiner recommend applicant to amend this limitation to (and for examining purpose, examiner interprets this limitation is) “the at least one of the air supply duct or the fuel supply duct”. Allowable Subject Matter Claims 1-14 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. The following is a statement of reasons for the indication of allowable subject matter: the limitations of independent claims cannot be met without impermissible hindsight reconstruction. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to KO-WEI LIN whose telephone number is (571)270-7675. The examiner can normally be reached M-F 6:30-2:30 Eastern Time. 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, Helena Kosanovic can be reached at (571)272-9059. 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. /KO-WEI LIN/Primary Examiner, Art Unit 3762
Read full office action

Prosecution Timeline

Mar 19, 2024
Application Filed
Jun 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

1-2
Expected OA Rounds
76%
Grant Probability
96%
With Interview (+20.5%)
3y 0m (~9m remaining)
Median Time to Grant
Low
PTA Risk
Based on 818 resolved cases by this examiner. Grant probability derived from career allowance rate.

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