Prosecution Insights
Last updated: April 19, 2026
Application No. 18/505,676

Recirculating Shower System

Non-Final OA §102§112
Filed
Nov 09, 2023
Examiner
CRANE, LAUREN ASHLEY
Art Unit
3754
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Hall Labs LLC
OA Round
1 (Non-Final)
57%
Grant Probability
Moderate
1-2
OA Rounds
3y 0m
To Grant
89%
With Interview

Examiner Intelligence

Grants 57% of resolved cases
57%
Career Allow Rate
478 granted / 836 resolved
-12.8% vs TC avg
Strong +32% interview lift
Without
With
+31.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
17 currently pending
Career history
853
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
49.0%
+9.0% vs TC avg
§102
24.9%
-15.1% vs TC avg
§112
19.2%
-20.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 836 resolved cases

Office Action

§102 §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 . 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 1-17 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. Claim 1 recites the limitation "the portion of the pressurized water" in line 20. There is insufficient antecedent basis for this limitation in the claim. Claim 12 recite the limitation “the supply flow rate is approximately between 0.8 and 2.0 gallons per minute”. Claim 13 recite the limitation “the supply flow rate of the pressurized water is approximately 1.2 gallons per minute”. Claim 14 recites the limitation “the total flow rate is approximately between 1.2 and 4.5 gallons per minute”. Claim 15 recites the limitation “the total flow rate is approximately 3 gallons per minute” Claim 16 recites the limitation “wherein the flow ratio is between approximately 1.2 and 4”. Claim 17 recites the limitation “the flow ratio is approximately 3.5”. These claims include the limitation “approximately”. The specification does not provide an adequate definition of what constitutes "approximately." For example, it is +/- 0.1%, 1%, 10%, etc.? Because the specification does not give a clear indication of what falls under the umbrella of "approximately" the scope of the claims is indefinite. 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) 18-20 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Henkin et al (US Patent 5,309,582 herein after Henkin). Regarding Claim 18, Henkin shows a method of recirculating bathing water comprising: providing a venturi pump (84; column 4 lines 33-54) with an inlet (86) capable of receiving pressurized water (from pipe 30), an intake (98) capable of drawing water from a reservoir of bathing water into the flow of pressurized water passing through the venturi pump (column 5 lines 1-9), and an outlet (96) capable of expelling a combination of mixed water and reservoir water from the venturi pump (column 5 lines 1-10). Regarding Claim 19, Henkin shows the method of claim 18 further comprising providing a showerhead fixture (68) comprising a recirculation portion (124) to be fluidly connected downstream from the outlet of the venturi pump (Fig.1), out of which water expelled from the venturi pump can be expelled in a shower (column 5 lines 25-30). Regarding Claim 20, Henkin shows the method of claim 18 further comprising providing a diverter (41) to be upstream from the inlet of the venturi pump (Fig. 1a) which is capable of receiving pressurized water and selectively diverting the pressurized water between two outlets (32,68) one of which outlets (68) is to be fluidly connected to the inlet of the venturi pump (Fig.1). Allowable Subject Matter Claims 1-17 would be allowable if rewritten to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action and to include all of the limitations of the base claim and any intervening claims. The following is an examiner’s statement of reasons for allowance: Regarding claim 1, the combination including limitation the base including a venturi pump receiving the at least a portion of the pressurized water at its inlet and drawing water from around the base on the shower floor through an intake in the base and whereby, in operation, the portion of the pressurized water and the venturi pump are used to draw water from the shower floor and thus mix the drawn water with the at least a portion of pressurized water, to thereby produce an increased volume of water expelled through the showerhead jets in the invention as claimed is neither disclosed nor rendered obvious by the prior art. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Freedman (US Patent 4,934,000) teaches a shower head that includes shower head (18) and a diverter (24) and a second inlet (26) for received recirculated water, a base (14) having an inlet (Fig.3) and an outlet (28; Fig.3). The system fails to show a venturi pump located in the base and the pump being used to draw water from the shower floor to mix with drawn water from the pressurized water source to thereby increase the volume of water expelled through the showerhead. Any inquiry concerning this communication or earlier communications from the examiner should be directed to LAUREN ASHLEY CRANE whose telephone number is (571)270-5198. The examiner can normally be reached Mondays & Tuesdays 8 am - 4pm. 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, David Angwin can be reached at 571-270-3735. 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. /LAUREN A CRANE/ Primary Examiner, Art Unit 3754
Read full office action

Prosecution Timeline

Nov 09, 2023
Application Filed
Jan 23, 2026
Non-Final Rejection — §102, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12599269
TILEABLE RECEPTOR
2y 5m to grant Granted Apr 14, 2026
Patent 12595649
FLUIDICS DEVICES FOR PLUMBING FIXTURES
2y 5m to grant Granted Apr 07, 2026
Patent 12596390
TEMPERATURE ADJUSTMENT METHOD FOR AN INTELLIGENT TOILET, AN ELECTRONIC DEVICE, A STORAGE MEDIUM, AND AN INTELLIGENT TOILET
2y 5m to grant Granted Apr 07, 2026
Patent 12590448
CONTROL SYSTEM AND A CONTROL METHOD OF INTELLIGENT TOILETS
2y 5m to grant Granted Mar 31, 2026
Patent 12584301
LAVATORY CARRIER ASSEMBLY WITH WASTE LINE ACCESS PORT
2y 5m to grant Granted Mar 24, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
57%
Grant Probability
89%
With Interview (+31.7%)
3y 0m
Median Time to Grant
Low
PTA Risk
Based on 836 resolved cases by this examiner. Grant probability derived from career allow 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