Prosecution Insights
Last updated: August 16, 2026
Application No. 18/474,322

REACTOR

Non-Final OA §103
Filed
Sep 26, 2023
Priority
Feb 08, 2022 — JP 2022-017949 +1 more
Examiner
KUYKENDALL, ALYSSA LEE
Art Unit
Tech Center
Assignee
Ngk Insulators Ltd.
OA Round
1 (Non-Final)
14%
Grant Probability
At Risk
1-2
OA Rounds
9m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants only 14% of cases
14%
Career Allowance Rate
3 granted / 21 resolved
-45.7% vs TC avg
Strong +95% interview lift
Without
With
+94.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 8m
Avg Prosecution
45 currently pending
Career history
81
Total Applications
across all art units

Statute-Specific Performance

§103
59.6%
+19.6% vs TC avg
§102
16.7%
-23.3% vs TC avg
§112
21.9%
-18.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 21 resolved cases

Office Action

§103
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 . Summary This is a non-final office action for application 18/474,322 filed on 26 September 2023. Claims 1-2 are currently pending in this application. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 1-2 are rejected under 35 U.S.C. 103 as being unpatentable over Shigekazu (JP-2003010658-A) in view of Kenichi (WO-2020255867-A1) and Sampath (US-20210115341-A1). Regarding Claim 1, Shigekazu discloses a reactor (a reactor; see [0001]) comprising: a separation membrane (reactor that incorporates the gas separation material; see [0001] and a gas separation material equipped with the gas separation membrane; see [0006]) permeable to a product of a conversion reaction of a raw material gas (gas separation membrane with a relatively high gas permeability; see [0009]) containing at least hydrogen and carbon oxide (hydrogen separation membrane for permeating hydrogen; see [0016]); a non-permeation side flow path extending in an approximately vertical direction on a non-permeation side of the separation membrane (a reaction section, i.e., a hydrogen generation section 24, is formed around the hydrogen separation material 30… gas discharge pipe 26 that discharges the gas inside chamber 22; see [0048] and Fig. 8), the raw material gas flowing through the non-permeation side flow path (gas introduced into the hydrogen generation unit 24 that does not permeate the hydrogen separation membranes; see [0049]); and a catalyst configured to fill the non-permeation side flow path and promote the conversion reaction (hydrogen generation section 24, is formed around the hydrogen separation material 30, which is filled with a catalyst for hydrogen generation reaction (reforming); see [0048]), Shigekazu does not explicitly teach the ability of the reactor/membrane to handle liquid. However, Kenichi discloses the ability to separate a mixture containing liquids (the separation of a mixture containing multiple types of gases or liquids). Shigekazu and Kenichi are both considered to be analogous to the claimed invention because they are in the same field of catalytic membrane reactors. This modification would have been obvious to a person of ordinary skill in the art before the effective filing date of the claimed invention because Kenichi provides the motivation of the membrane therefore enabling separation of liquids (see [0075]). Shigekazu does not explicitly teach catalyst layers with varying size. However, Sampath discloses a catalyst including a first layer and a second layer disposed upward of the first layer, and a mean equivalent circle diameter of catalyst particles included in the first layer is larger than a mean equivalent circle diameter of catalyst particles included in the second layer (smaller diameter cylindrical catalyst pellets in the entry zone… and larger size cylindrical pellets in the exit zone; see [0054]). Shigekazu and Sampath are both considered to be analogous to the claimed invention because they are in the same field of catalytic reactors. This modification would have been obvious to a person of ordinary skill in the art before the effective filing date of the claimed invention because Sampath offers the motivation of improved pressure drop conditions (Bed pressure drop tends to be higher in the bottom zone…. Guide us to use larger size pellets in the bottom zone; see [0109). Regarding Claim 2, Shigekazu, Kenichi, and Sampath together disclose the reactor according to claim 1. Sampath further discloses wherein the first layer is located at a lowermost layer of the catalyst (use larger size pellets in the bottom zone; see [0109). This modification would have been obvious to a person of ordinary skill in the art before the effective filing date of the claimed invention because Sampath offers the motivation of improved pressure drop conditions (Bed pressure drop tends to be higher in the bottom zone…. Guide us to use larger size pellets in the bottom zone; see [0109). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ALYSSA LEE KUYKENDALL whose telephone number is (571)270-3806. The examiner can normally be reached Monday- Friday 9:00am-5:00pm. 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, Claire Wang can be reached at 571-270-1051. 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. /A.L.K./Examiner, Art Unit 1774 /CLAIRE X WANG/Supervisory Patent Examiner, Art Unit 1774
Read full office action

Prosecution Timeline

Sep 26, 2023
Application Filed
Jul 14, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12685981
METHOD AND REACTOR FOR CONVERSION OF HYDROCARBONS
3y 6m to grant Granted Jul 21, 2026
Patent 12661624
Solar Concentrator Reactor for High Temperature Thermochemical Processes
4y 4m to grant Granted Jun 23, 2026
Study what changed to get past this examiner. Based on 2 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
14%
Grant Probability
99%
With Interview (+94.7%)
3y 8m (~9m remaining)
Median Time to Grant
Low
PTA Risk
Based on 21 resolved cases by this examiner. Grant probability derived from career allowance rate.

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