Prosecution Insights
Last updated: August 06, 2026
Application No. 19/005,123

MIXED FUEL SYSTEM

Non-Final OA §DP
Filed
Dec 30, 2024
Priority
Mar 02, 2018 — provisional 62/637,902 +3 more
Examiner
AYALA DELGADO, ANTHONY
Art Unit
3746
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
American Power Group, Inc.
OA Round
2 (Non-Final)
80%
Grant Probability
Favorable
2-3
OA Rounds
11m
Est. Remaining
97%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allowance Rate
565 granted / 710 resolved
+9.6% vs TC avg
Strong +17% interview lift
Without
With
+17.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
13 currently pending
Career history
736
Total Applications
across all art units

Statute-Specific Performance

§101
3.8%
-36.2% vs TC avg
§103
41.9%
+1.9% vs TC avg
§102
26.5%
-13.5% vs TC avg
§112
25.3%
-14.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 710 resolved cases

Office Action

§DP
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 . Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1-20 provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claim 1-5, 7-15, 17, 19, 20 of copending Application No. 18/452,988. Although the claims at issue are not identical, they are not patentably distinct from each other because the only difference between the copending application 18/452,988 and current application is that application ‘988 discloses a narrower claim 1 by combining the same subject matter provided in claim 16. Hence there is no difference between subject matter claimed from current applicant and application ‘988. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ANTHONY AYALA DELGADO whose telephone number is (571)270-3452. The examiner can normally be reached on Mon-Fri 8:00-5:00. 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, Mark III Laurenzi can be reached on (571) 270-7878. 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://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /ANTHONY AYALA DELGADO/ Primary Examiner, Art Unit 3746
Read full office action

Prosecution Timeline

Dec 30, 2024
Application Filed
Jan 15, 2026
Non-Final Rejection mailed — §DP
Apr 15, 2026
Response Filed
Jul 01, 2026
Non-Final Rejection mailed — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Method for Operating a Burner of a Motor Vehicle
2y 10m to grant Granted Jul 28, 2026
Patent 12687160
AIR COMPRESSOR
2y 1m to grant Granted Jul 21, 2026
Patent 12680485
EXHAUST-GAS TREATMENT ARRANGEMENT
2y 7m to grant Granted Jul 14, 2026
Patent 12680546
LIQUID SEPARATION DEVICE FOR A COMPRESSOR SYSTEM AND COMPRESSOR SYSTEM HAVING SUCH A LIQUID SEPARATION DEVICE
1y 8m to grant Granted Jul 14, 2026
Patent 12674458
FIXED SCROLL ASSEMBLY AND SCROLL COMPRESSOR
1y 6m to grant Granted Jul 07, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

2-3
Expected OA Rounds
80%
Grant Probability
97%
With Interview (+17.1%)
2y 6m (~11m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 710 resolved cases by this examiner. Grant probability derived from career allowance rate.

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