Prosecution Insights
Last updated: August 16, 2026
Application No. 18/926,473

GAS SENSOR

Non-Final OA §112
Filed
Oct 25, 2024
Priority
Nov 01, 2023 — JP 2023-187624
Examiner
PHAN, TRUONG D
Art Unit
Tech Center
Assignee
Ngk Insulators Ltd.
OA Round
1 (Non-Final)
68%
Grant Probability
Favorable
1-2
OA Rounds
11m
Est. Remaining
85%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allowance Rate
302 granted / 441 resolved
+8.5% vs TC avg
Strong +16% interview lift
Without
With
+16.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
25 currently pending
Career history
467
Total Applications
across all art units

Statute-Specific Performance

§101
2.1%
-37.9% vs TC avg
§103
50.6%
+10.6% vs TC avg
§102
10.9%
-29.1% vs TC avg
§112
32.9%
-7.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 441 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 . 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 to claim 1, limitations of “a distal end side in the axial direction” in lines 17-18 of claim 1 and limitations of “a rear end side in the axial direction” in lines 19-20 of claim 1 render the claim indefinite. A distal end side of what? A distal end side of the hollow member? A rear end side of what? A rear end side of the hollow member? Hence, it is unclear. As to claim 1, claim 1 recites limitations “the inside” in line 4 of claim 1. There is insufficient antecedent basis for this limitation in the claim. Claim 1 is 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 pre-AIA the applicant regards as the invention. The claim languages “the inside” appear for the first time, however, read as though they have already been recited. See MPEP 2173.05(e). Claims 2-14 are also rejected because they are dependent on the rejected claim 1 as set forth above. Allowable Subject Matter Claims 1-14 are allowable once 112b rejections are corrected. The following is a statement of reasons for the indication of allowable subject matter: The closest prior art of record is Kume-Translate_JP2010266361A, which teaches a gas sensor (page 3 and fig.1) comprising: a sensor element 10 extending in an axial direction and having a connector electrode 60 on a rear end side (fig.1 and page 3: terminal fittings 60 and 61 are electrically connected to the electrode extraction portions 10e of the sensor element 10; hence, terminal fitting 60 corresponds to “connector electrode”); a tubular main metal fitting 2 in which the sensor element 10 penetrates an inside in the axial direction (page 5: a cylindrical metal shell 2 corresponds to “a tubular main metal fitting”); a tubular outer tube 90 extending in the axial direction and attached to an outer peripheral surface on a rear end side of the main metal fitting 2 (see described fig.1); a terminal metal fitting extending in the axial direction and including an element contact portion electrically connected to the connector electrode 60 on a distal end side (described fig.1 and page 3: terminal fittings 60 and 61 are electrically connected to the electrode extraction portions 10e of the sensor element 10; thus “a terminal metal fitting extending in the axial direction and including an element contact portion electrically connected to the connector electrode on a distal end side”); a ceramic housing 70 accommodating the connector electrode 60 and the element contact portion and disposed inside the outer tube 90 (page 7 and fig.1); an elastic body 5 (page 3: rubber grommet 5 corresponds to “an elastic body”) disposed to seal an open end on a rear end side of the outer tube 90 (fig.1). PNG media_image1.png 550 652 media_image1.png Greyscale Kume fails to teach a hollow member disposed inside the outer tube, in which the sensor element penetrates the inside in the axial direction, a distal end side in the axial direction is in contact with the rear end side of the main metal fitting, and a rear end side in the axial direction is in contact with a distal end side of the ceramic housing, when in combination with all other elements of gas sensor as claimed in the claim 1. Hence the prior art of record fails to teach the invention as set forth in claims 1-14 and Examiner cannot find specific teaching of the invention, nor reasons within the cited art to combine and/or modify the elements of the prior art of record other than applicant's own reasoning. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to TRUONG D PHAN whose telephone number is (571)272-8883. The examiner can normally be reached Monday-Friday. 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, John Breene can be reached on 571-272-4107. 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. /TRUONG D PHAN/Examiner, Art Unit 2855 /JOHN E BREENE/Supervisory Patent Examiner, Art Unit 2855
Read full office action

Prosecution Timeline

Oct 25, 2024
Application Filed
Jul 30, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12706281
EROSION RATE MONITORING FOR WAFER FABRICATION EQUIPMENT
4y 0m to grant Granted Aug 11, 2026
Patent 12704522
THREE-DIMENSIONAL SHOCK DETECTION USING KNOCK SENSOR AND TUNING FORK
2y 2m to grant Granted Aug 11, 2026
Patent 12693186
SYSTEM AND METHOD FOR DETECTING LEAKS WITH A LEAK DETECTION CABLE
2y 3m to grant Granted Jul 28, 2026
Patent 12693202
TEST APPARATUS FOR THE DYNAMIC MEASUREMENT OF MOISTURE TRANSPORT AND STORAGE PROPERTIES OF POROUS MATERIALS
2y 3m to grant Granted Jul 28, 2026
Patent 12680985
ONLINE ANALYSIS SYSTEM
2y 3m to grant Granted Jul 14, 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
68%
Grant Probability
85%
With Interview (+16.3%)
2y 8m (~11m remaining)
Median Time to Grant
Low
PTA Risk
Based on 441 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