Prosecution Insights
Last updated: July 17, 2026
Application No. 18/424,999

JUNCTION TEMPERATURE ESTIMATION

Non-Final OA §112
Filed
Jan 29, 2024
Priority
Feb 21, 2023 — GB 2302441.7
Examiner
JAGAN, MIRELLYS
Art Unit
2855
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Rolls-Royce plc
OA Round
1 (Non-Final)
83%
Grant Probability
Favorable
1-2
OA Rounds
2m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allowance Rate
1229 granted / 1483 resolved
+14.9% vs TC avg
Moderate +6% lift
Without
With
+5.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
19 currently pending
Career history
1501
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
70.9%
+30.9% vs TC avg
§102
14.5%
-25.5% vs TC avg
§112
11.4%
-28.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1483 resolved cases

Office Action

§112
DETAILED ACTION The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Election/Restrictions Applicant's election with traverse of Group II (claims 10-20) in the reply filed on 3/6/26 is acknowledged. The traversal is found persuasive, therefore the restriction requirement is withdrawn, and non-elected claims 1-9 (Group I) are being examined for patentability. Claim Objections Claims 1, 2, 5, 6, 8, 10, 11, and 14-18 are objected to because of the following informalities: In claim 1, --a-- should be added after “measure” in line 8; “transistor” should be changed to --transistors-- throughout lines 16-20 and 23; --parameter-- should be added after “calibration” in line 22 (see paragraph 116 of the published application); and --the-- should be added before “current” in line 22. In claim 2, “transistor where” should be changed to --transistors when-- in line 2. In claim 5, “current” should be changed to --the current being-- in line 2. In claim 6, “a rate of change of current and an” should be changed to --the rate of change of the current and the-- in lines 2-3. In claim 8, “transistor” should be changed to --transistors-- in line 2. In claim 10, --a-- should be added after “measure” in line 7 and after “during” in line 14; “transistor” should be changed to --transistors-- in lines 15, 16, and 18; “,” should be added after “measure” and after “signal” in line 15; --parameter-- should be added after “calibration” in line 17 (see paragraph 116 of the published application); and --the-- should be added before “current” in line 18. In claim 11, --,-- should be added after “measure” and after “sensor” in line 8; “a” should be changed to --the-- in lines 8 and 9; --the-- should be added before “current” in lines 9 and 14; “transistor” should be changed to --transistors-- throughout lines 10, 11, and 13; “(S1-6)” should be deleted from line 10; and “DC supply voltage” should be changed to --first voltage supply-- in line 12. In claim 14, --voltage-- should be added before “supplies” in line 2. In claim 15, “converter, ADC” should be changed to --converter (ADC)-- in line 3; --the-- should be added before “current” in lines 8 and 10; --parameter-- should be added after “calibration” in line 9 (see paragraph 116 of the published application); and “transistor” should be changed to --transistors-- in line 11. In claim 16, “a measure of current” should be changed to --the measure of the current-- in lines 3-4. In claim 17, “a measurement of rate of change of current” should be changed to --the measurement of the rate of change of the current-- in line 2; and “(S1-6)” should be deleted from line 3. In claim 18, “transistor (S1-6) is” should be change to --transistors are--. 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 1-20 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. In claim 1, it is not clear how the step recited in lines 17-19 is used to calibrate recited in the step in lines 21-23 (there is no relationship between these two steps). In claim 10, it is not clear how the step recited in lines 15-16 is used to calibrate recited in the step in lines 17-18 (there is no relationship between these two steps). Claims 2-9 and 11-20 are rejected for being dependent on a rejected base claim. Conclusion The references made of record and not relied upon by the examiner are considered pertinent to applicant's disclosure by disclosing an electrical power system, but do not disclose the allowable subject matter stated above. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MIRELLYS JAGAN whose telephone number is (571)272-2247. The examiner can normally be reached Tuesday-Friday 8-6. 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, Kristina DeHerrera can be reached at 303-297-4237. 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. /MIRELLYS JAGAN/ Primary Examiner Art Unit 2855 4/26/26
Read full office action

Prosecution Timeline

Jan 29, 2024
Application Filed
May 01, 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
83%
Grant Probability
88%
With Interview (+5.6%)
2y 7m (~2m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1483 resolved cases by this examiner. Grant probability derived from career allowance rate.

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