Prosecution Insights
Last updated: September 17, 2026
Application No. 18/716,657

Lightweight Pressure Reduction Hydrogen Supply Device Suitable for Hydrogen Energy Handheld Torch

Non-Final OA §102§112
Filed
Jun 05, 2024
Priority
Dec 06, 2021 — CN 202111481514.X +1 more
Examiner
SHIRSAT, VIVEK K
Art Unit
Tech Center
Assignee
BEIJING AEROSPACE PETROCHEMICAL TECHNOLOGY & EQUIPMENT ENGINEERING CORPORATION LIMITED
OA Round
1 (Non-Final)
74%
Grant Probability
Favorable
1-2
OA Rounds
8m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allowance Rate
825 granted / 1111 resolved
+14.3% vs TC avg
Strong +28% interview lift
Without
With
+28.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
48 currently pending
Career history
1141
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
48.5%
+8.5% vs TC avg
§102
21.9%
-18.1% vs TC avg
§112
23.9%
-16.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1111 resolved cases

Office Action

§102 §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 . 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 4, 8-9, 11, and 16 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. A broad range or limitation together with a narrow range or limitation that falls within the broad range or limitation (in the same claim) may be considered indefinite if the resulting claim does not clearly set forth the metes and bounds of the patent protection desired. See MPEP § 2173.05(c). In the present instance, claim 4 recites the broad recitation 3̊-18̊, and the claim also recites 5̊-10̊ which is the narrower statement of the range/limitation. The claim(s) are considered indefinite because there is a question or doubt as to whether the feature introduced by such narrower language is (a) merely exemplary of the remainder of the claim, and therefore not required, or (b) a required feature of the claims. A broad range or limitation together with a narrow range or limitation that falls within the broad range or limitation (in the same claim) may be considered indefinite if the resulting claim does not clearly set forth the metes and bounds of the patent protection desired. See MPEP § 2173.05(c). In the present instance, claim 8 recites the broad recitation 1.1 to 2.4 and 1.2 to 3.2, and the claim also recites 1.3 to 1.8 and 1.7-2.6, respectively, which is the narrower statement of the range/limitation. The claim(s) are considered indefinite because there is a question or doubt as to whether the feature introduced by such narrower language is (a) merely exemplary of the remainder of the claim, and therefore not required, or (b) a required feature of the claims. A broad range or limitation together with a narrow range or limitation that falls within the broad range or limitation (in the same claim) may be considered indefinite if the resulting claim does not clearly set forth the metes and bounds of the patent protection desired. See MPEP § 2173.05(c). In the present instance, claim 9 recites the broad recitation 1.1 to 2, and the claim also recites 1.4 to 1.7 which is the narrower statement of the range/limitation. The claim(s) are considered indefinite because there is a question or doubt as to whether the feature introduced by such narrower language is (a) merely exemplary of the remainder of the claim, and therefore not required, or (b) a required feature of the claims. A broad range or limitation together with a narrow range or limitation that falls within the broad range or limitation (in the same claim) may be considered indefinite if the resulting claim does not clearly set forth the metes and bounds of the patent protection desired. See MPEP § 2173.05(c). In the present instance, claim 11 recites the broad recitation 2 to 2.8, and the claim also recites 2.2 to 2.5 which is the narrower statement of the range/limitation. The claim(s) are considered indefinite because there is a question or doubt as to whether the feature introduced by such narrower language is (a) merely exemplary of the remainder of the claim, and therefore not required, or (b) a required feature of the claims. A broad range or limitation together with a narrow range or limitation that falls within the broad range or limitation (in the same claim) may be considered indefinite if the resulting claim does not clearly set forth the metes and bounds of the patent protection desired. See MPEP § 2173.05(c). In the present instance, claim 16 recites the broad recitation 2 to 10mm and 2.5-8mm, 2 to 8mm, and 2 to 5mm and the claim also recites 2.5 to 8m, 2.5 to 7mm, and 2.5 to 4mm, respectively, which is the narrower statement of the range/limitation. The claim(s) are considered indefinite because there is a question or doubt as to whether the feature introduced by such narrower language is (a) merely exemplary of the remainder of the claim, and therefore not required, or (b) a required feature of the claims. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Tsai (US 2016/0097530 A1). With respect to claim 1 Tsai discloses a lightweight depressurization hydrogen supply device suitable for a hydrogen energy handheld torch1, configured to connect a gas cylinder to a combustor in the torch, comprising: a cylinder opening valve [reference character 28]; a pressure reducing valve [see annotated Fig. below]; a switch assembly [reference characters 27, 271, and 272]; a switch actuating component [reference character 27]; and a gas cylinder cap [see annotated Fig. below]; wherein the pressure reducing valve is configured to perform depressurization of high pressure hydrogen [paragraph 0034], and is provided with three butting ports [see annotated Fig. below], wherein a lower butting port is connected to the gas cylinder cap, an upper butting port is connected to the combustor, a side butting port is provided with the switch assembly [see annotated Fig. below], and the switch actuating component and the cylinder opening valve are installed in the gas cylinder cap [see Fig. 6]; the switch assembly is configured to control the switch actuating component to open or close the cylinder opening valve [paragraph 0033]; the cylinder opening valve is connected to a cylinder opening of the gas cylinder and configured to open or close the gas cylinder [see Figs. 7-8]. PNG media_image1.png 694 777 media_image1.png Greyscale Allowable Subject Matter Claims 2-3, 5-7, 10, 12-15, and 17 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. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to VIVEK K SHIRSAT whose telephone number is (571)272-3722. The examiner can normally be reached M-F 9:00AM-5:20AM. 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. /VIVEK K SHIRSAT/Primary Examiner, Art Unit 3762 1 Tsai discloses a “fuel gas” container [reference character 1], a hydrocarbon fuel would necessarily contain hydrogen.
Read full office action

Prosecution Timeline

Jun 05, 2024
Application Filed
Aug 19, 2026
Non-Final Rejection mailed — §102, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12729850
GAS BURNER ASSEMBLY FOR A COOKTOP APPLIANCE
3y 0m to grant Granted Sep 08, 2026
Patent 12723754
Gas Burner with Secondary and Tertiary Air Supplies
2y 9m to grant Granted Sep 01, 2026
Patent 12723757
A METHOD OF STARTING A BURNER DEVICE AND HEATING DEVICE HAVING A BURNER DEVICE
2y 8m to grant Granted Sep 01, 2026
Patent 12702253
COOKING DEVICE AND COMPONENTS THEREOF
5y 6m to grant Granted Aug 11, 2026
Patent 12704255
SYSTEMS, APPARATUSES, METHODS, AND COMPUTER PROGRAM PRODUCTS FOR SEGREGATION OF FLARING AND VENTING VOLUMES USING MACHINE LEARNING APPROACHES
3y 5m to grant Granted Aug 11, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
74%
Grant Probability
99%
With Interview (+28.0%)
2y 11m (~8m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1111 resolved cases by this examiner. Grant probability derived from career allowance 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