Prosecution Insights
Last updated: April 19, 2026
Application No. 18/036,751

INTEGRATED PROCESS AND SYSTEM FOR MEASUREMENT AND TREATMENT OF TOXIC GASES IN DEEP NATURAL GAS

Non-Final OA §112
Filed
May 12, 2023
Examiner
BERNS, DANIEL J
Art Unit
1736
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Petrochina Company Limited
OA Round
1 (Non-Final)
73%
Grant Probability
Favorable
1-2
OA Rounds
2y 9m
To Grant
99%
With Interview

Examiner Intelligence

Grants 73% — above average
73%
Career Allow Rate
588 granted / 808 resolved
+7.8% vs TC avg
Strong +35% interview lift
Without
With
+34.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
25 currently pending
Career history
833
Total Applications
across all art units

Statute-Specific Performance

§101
2.8%
-37.2% vs TC avg
§103
37.8%
-2.2% vs TC avg
§102
21.5%
-18.5% vs TC avg
§112
28.1%
-11.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 808 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 . Drawings The 7-13-23 drawings are provisionally accepted. Due to their complexity and/or numerosity, applicant’s assistance is requested to ensure that all component labels therein are correctly identified in the specification and vice versa. 37 CFR 1.3 (courtesy 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 1-3, 6-14, 16-19, and 21-24 are rejected under 35 U.S.C. 112(b)/2nd par. 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’s (and all other claims that so recite) recitation of “deep-seated” renders said claim(s) rejected for indefiniteness under 35 U.S.C. 112(b)/2nd par. because it is unclear what depth is necessary to meet, infringe, and/or qualify as “deep-seated”; this uncertainty creates confusion as to the claimed scope and how to avoid infringement thereof. MPEP 2173.02 & 2173/05(b). It is noted that the specification-as-filed does not remedy the foregoing. Applicant is hereby advised that, as independent claim 1 and dependent claim 10 (see below) are rejected for deficiencies under 35 USC 112(b)/2nd par., all claims depending therefrom (or referring back thereto) also contain such deficiencies and are likewise rejected (unless the deficiencies are resolved by the dependent claim’s own limitations) - cure thereof is required for any and all claims affected even if any such claim were otherwise found allowable. See, e.g., In re Jolly, 172 F.2d 566, 567 (CCPA 1949) (holding that dependent claims of indefinite claims are thusly indefinite), and Ex parte Kristensen, 10 USPQ2d 1701, 1702-04 (BPAI 1989) (same); 35 USC 112(d)/4th par. Claim 8’s “the wellhead” lacks sufficient antecedent bases, rendering the claim rejected for indefiniteness under 35 U.S.C. 112(b)/2nd par. Claim 10’s “the radon treatment chamber” lacks sufficient antecedent bases, rendering the claim rejected for indefiniteness under 35 U.S.C. 112(b)/2nd par. It is noted that Examiner attempted to resolve the foregoing rejections via Examiner’s Amendments in a 3-13-26 phone call to Michael Fedrick, Esq., but Examiner was unable to reach atty. Fedrick. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to DANIEL BERNS whose telephone number is (469)295-9161. The examiner can normally be reached M-F 8:30-5:00 (Central). 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, Anthony Zimmer can be reached at (571) 270-3591. 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. /DANIEL BERNS/ March 13, 2026 Primary Examiner Art Unit 1736
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Prosecution Timeline

May 12, 2023
Application Filed
Mar 13, 2026
Non-Final Rejection — §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
73%
Grant Probability
99%
With Interview (+34.7%)
2y 9m
Median Time to Grant
Low
PTA Risk
Based on 808 resolved cases by this examiner. Grant probability derived from career allow rate.

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