Prosecution Insights
Last updated: April 19, 2026
Application No. 18/848,571

METHOD FOR SUPPLYING ASSOCIATIVE GAS TO SEMICONDUCTOR MANUFACTURING APPARATUS

Non-Final OA §102§Other
Filed
Sep 19, 2024
Examiner
CHAUDRY, ATIF H
Art Unit
3753
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Kuwana Metals Ltd.
OA Round
1 (Non-Final)
70%
Grant Probability
Favorable
1-2
OA Rounds
2y 10m
To Grant
87%
With Interview

Examiner Intelligence

Grants 70% — above average
70%
Career Allow Rate
745 granted / 1061 resolved
At TC average
Strong +17% interview lift
Without
With
+17.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
39 currently pending
Career history
1100
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
55.0%
+15.0% vs TC avg
§102
24.8%
-15.2% vs TC avg
§112
16.1%
-23.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1061 resolved cases

Office Action

§102 §Other
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 § 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, 8 is/are rejected under 35 U.S.C. 102a1 as being anticipated by Saito et al (20200278084). Regarding claim 1, in making and/or using the device of Saito, for supplying associative gas (HF, Para 15) which is likely to cause association to a semiconductor manufacturing apparatus (Para 22), one would perform the steps of a step in which one associative gas (HF, Para 15, source 12) is selected for the purpose of using in manufacture of semiconductor devices, a step in which data of equilibrium vapor pressure Pe(T) as a function of temperature T for the selected associative gas is acquired (saturated vapor pressure curve, Fig 3), a step in which the maximum allowable pressure Pmax(T) at which the associative gas can be supplied without causing association is determined (Para 31, Para 47, pressure/temperature below saturation curve by a margin) based on the data of the equilibrium vapor pressure Pe(T), a step in which temperature Tg (adjusting temperature to desired values would necessarily involve temperature measuring) and pressure Pg (sensor 34) of the associative gas supplied to the semiconductor manufacturing apparatus are measured, a step in which a value of the maximum allowable pressure Pmax(Tg) at the measured temperature Tg is determined (pressure below critical valve from curve), and a step in which the pressure Pg is (Para 31) adjusted such that the measured pressure Pg does not exceed a value of the determined maximum allowable pressure. As to claim 8, Saito shows a step in which a flow rate Fg of the associative gas supplied to the semiconductor manufacturing apparatus per unit time is measured using a flow rate measuring means 34, and a step in which the measured flow rate Fg is controlled so as to be coincident with a preset flow rate Fs (by controller 35). Allowable Subject Matter Claim(s) 6, 7 is/are allowed. Claim(s) 2-5 is/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 Atif Chaudry at phone number 571-270-3768. The examiner can normally be reached on Monday-Friday (9:30AM-6:00PM EST). If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisors can be reached by phone. Kenneth Rinehart can be reached at 571-272-4881, or Craig Schneider can be reached at 571-272-3607. 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. /ATIF H CHAUDRY/Primary Examiner, Art Unit 3753
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Prosecution Timeline

Sep 19, 2024
Application Filed
Mar 07, 2026
Non-Final Rejection — §102, §Other (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
70%
Grant Probability
87%
With Interview (+17.1%)
2y 10m
Median Time to Grant
Low
PTA Risk
Based on 1061 resolved cases by this examiner. Grant probability derived from career allow rate.

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