Prosecution Insights
Last updated: April 19, 2026
Application No. 17/617,415

Water Treatment System and Method of Use Thereof

Final Rejection §112
Filed
Dec 08, 2021
Examiner
BASS, DIRK R
Art Unit
1779
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Renew Health Limited
OA Round
4 (Final)
62%
Grant Probability
Moderate
5-6
OA Rounds
3y 9m
To Grant
84%
With Interview

Examiner Intelligence

Grants 62% of resolved cases
62%
Career Allow Rate
515 granted / 831 resolved
-3.0% vs TC avg
Strong +22% interview lift
Without
With
+22.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
32 currently pending
Career history
863
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
48.6%
+8.6% vs TC avg
§102
29.0%
-11.0% vs TC avg
§112
15.9%
-24.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 831 resolved cases

Office Action

§112
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 . DETAILED ACTION Applicant’s response filed December 8, 2025 is acknowledged. Claim 1 is amended, claims 2-4, 6-12,17-20, and 23 are cancelled. Claims 1, 5, 13-16, 21-22, and 24-28 are pending and further considered on the merits. Response to Amendment In light of applicant’s amendment, the examiner modifies the grounds of rejection set forth in the office action filed May 19, 2025. 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, 5, 13-16, 21-22, and 24-28 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. Amended claim 1 recites a water treatment system comprising at least one pump assembly “positioned between said at least two filtration cartridges and said at least one pump assembly”. It is unclear whether applicant intends to locate the pump assembly between itself and said filtration cartridges, whether the amendment is made in error, or some other alternative. Additionally, it is unclear whether the original disclosure provides support for a pump assembly positioned as recited in amended claim 1. For these reasons, the examiner cannot provide a prior art rejection until the noted clarity issues are resolved. Response to Arguments Applicant’s arguments with respect to the claims have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to DIRK R BASS whose telephone number is (571)270-7370. The examiner can normally be reached 8-4:30 EST 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, Bobby Ramdhanie can be reached on (571) 270-3240. 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. DIRK R. BASS Primary Examiner Art Unit 1779 /DIRK R BASS/Primary Examiner, Art Unit 1779
Read full office action

Prosecution Timeline

Dec 08, 2021
Application Filed
Mar 27, 2024
Non-Final Rejection — §112
May 01, 2024
Applicant Interview (Telephonic)
May 03, 2024
Examiner Interview Summary
Sep 30, 2024
Response Filed
Jan 02, 2025
Final Rejection — §112
Apr 29, 2025
Response after Non-Final Action
May 14, 2025
Non-Final Rejection — §112
Nov 19, 2025
Response Filed
Nov 19, 2025
Response after Non-Final Action
Dec 08, 2025
Response Filed
Mar 05, 2026
Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12599667
METHODS OF PREVENTING PLATELET ALLOIMMUNIZATION AND ALLOIMMUNE PLATELET REFRACTORINESS AND INDUCTION OF TOLERANCE IN TRANSFUSED RECIPIENTS
2y 5m to grant Granted Apr 14, 2026
Patent 12594528
SPACER FILM WITH INTEGRATED LAMINATION STRIP
2y 5m to grant Granted Apr 07, 2026
Patent 12590955
METHODS AND SYSTEMS FOR PROCESSING PARTICLES
2y 5m to grant Granted Mar 31, 2026
Patent 12588779
DRIP COFFEE FILTER STRUCTURE
2y 5m to grant Granted Mar 31, 2026
Patent 12582496
Manifold For A Medical/Surgical Waste Collection Assembly
2y 5m to grant Granted Mar 24, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

5-6
Expected OA Rounds
62%
Grant Probability
84%
With Interview (+22.4%)
3y 9m
Median Time to Grant
High
PTA Risk
Based on 831 resolved cases by this examiner. Grant probability derived from career allow rate.

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