Prosecution Insights
Last updated: July 17, 2026
Application No. 18/568,966

Membrane Cartridge and Membrane Cartridge Manufacturing Method

Non-Final OA §102
Filed
Dec 11, 2023
Priority
Jun 11, 2021 — JP 2021-098088 +1 more
Examiner
KEYWORTH, PETER
Art Unit
1777
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Kubota Corporation
OA Round
1 (Non-Final)
58%
Grant Probability
Moderate
1-2
OA Rounds
11m
Est. Remaining
82%
With Interview

Examiner Intelligence

Grants 58% of resolved cases
58%
Career Allowance Rate
460 granted / 789 resolved
-6.7% vs TC avg
Strong +24% interview lift
Without
With
+23.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 6m
Avg Prosecution
57 currently pending
Career history
834
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
85.5%
+45.5% vs TC avg
§102
2.2%
-37.8% vs TC avg
§112
7.9%
-32.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 789 resolved cases

Office Action

§102
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 . Election/Restrictions Applicant's election with traverse of claims 4-6 in the reply filed on 3/25/2026 is acknowledged. The traversal is on the ground(s) that the International Search Authority did not find a lack of unity of invention and thus it is present. This is not found persuasive because while the International Search Authority did not restrict the claims due to lack of unity does not mean that there is not a lack of unity, only that the International Search Authority did not apply one. The restriction dated 2/2/2026 provides sufficient rational as to how there is a lack of unity between the groups of invention and Applicant has not pointed to any errors in the restriction or how the inventions have unity of invention in view of Iskikawa. The requirement is still deemed proper and is therefore made FINAL. 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) 4-6 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Ishikawa et al. (US 2017/02399625 in IDS). Regarding claim 4, Ishikawa teaches membrane cartridge manufacturing method for manufacturing a membrane cartridge in which a filtration membrane is joined to a support plate that comprises a reference surface (surface between areas 231 and 232), a first joint portion (231) protruding from the reference surface, and a second joint portion(232) retreated from the reference surface, the membrane cartridge manufacturing method comprising: placing the filtration membrane on a pre-joining support plate (21) in which the reference surface and the first joint portion have been provided in advance; and joining between the filtration membrane and the support plate at the first joint portion and the second joint portion through forming the second joint portion by pressing a pressing member (51) against the filtration membrane placed on the pre-joining support plate, from above the filtration membrane, so that a portion of the reference surface is retreated, wherein, in the pressing member, a first portion that faces the first joint portion is retreated from a second portion that forms the second joint portion (Figs. 2 and 5-8). It is noted that the while support plate (21) would have portions that would be considered the reference surface and the first joint portion and would therefore read on the limitation of a pre-joining support plate having the two portions in advance absent any further structural details of the reference surface and first joint portion. Regarding claim 5, as can be seen in Fig. 8 the first portion of the retreated in comparison to the height of the second portion in a distance smaller than the height of first joint portion from the reference surface. Regarding claim 6, Ishikawa teaches that the pressing member is heated (hot plate) ([0038]). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to PETER KEYWORTH whose telephone number is (571)270-3479. The examiner can normally be reached 9-5 MT (11-7 ET). 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, Jennifer Dieterle can be reached at (571) 270-7872. 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. /PETER KEYWORTH/Primary Examiner, Art Unit 1777
Read full office action

Prosecution Timeline

Dec 11, 2023
Application Filed
Apr 20, 2026
Non-Final Rejection mailed — §102
Jun 16, 2026
Interview Requested
Jun 24, 2026
Applicant Interview (Telephonic)
Jun 24, 2026
Examiner Interview Summary

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Patent 12605676
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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
58%
Grant Probability
82%
With Interview (+23.8%)
3y 6m (~11m remaining)
Median Time to Grant
Low
PTA Risk
Based on 789 resolved cases by this examiner. Grant probability derived from career allowance rate.

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