Prosecution Insights
Last updated: April 19, 2026
Application No. 18/397,839

ESTIMATING POOL VOLUME SYSTEM AND METHOD

Non-Final OA §102
Filed
Dec 27, 2023
Examiner
ROYSTON, JOHN M
Art Unit
2855
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Pentair, Inc.
OA Round
1 (Non-Final)
78%
Grant Probability
Favorable
1-2
OA Rounds
2y 7m
To Grant
95%
With Interview

Examiner Intelligence

Grants 78% — above average
78%
Career Allow Rate
497 granted / 639 resolved
+9.8% vs TC avg
Strong +17% interview lift
Without
With
+17.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
16 currently pending
Career history
655
Total Applications
across all art units

Statute-Specific Performance

§101
4.3%
-35.7% vs TC avg
§103
48.5%
+8.5% vs TC avg
§102
22.9%
-17.1% vs TC avg
§112
19.3%
-20.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 639 resolved cases

Office Action

§102
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 . Election/Restrictions Applicant’s election of group II, claims 13-15 (and new claims 21-22 which depend therefrom) is acknowledged. The examiner also notes that claims 1-12 and 16-20 have been canceled in the reply filed 28 January 2026. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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. Claims 13-15 and 21-22 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Roy et al. US PG-PUB 2023/0090852 A1 (hereafter Roy). As to claim 13: Roy discloses a method for calibrating a pool device for a pool (10; fig. 1), comprising: measuring a first water temperature of pool water via a sensor (not labeled but see the disclosed temperature sensors in ¶ 59) at a first calibration time (not labeled but see ¶ 65 with regard to the beginning of a cycle time); operating a heater (14; see ¶ 59) to heat the pool water (see ¶ 62 and 64-66); measuring a second water temperature of the pool water via the sensor at a second calibration time (not labeled but see ¶ 65 with regard to the end of a cycle time); determining a run time of the heater with a controller (12; see ¶ 55) based on a difference between the second calibration time and the first calibration time (see ¶ 57 and 70 regarding the heater cycle time); determining a change in water temperature with the controller based on a difference between the first water temperature and the second water temperature (see ¶ 66 regarding the deltaTh2o parameter); determining a volume of the pool based on at least one of the run time of the heater, the change in the water temperature, or a predefined heat output of the heater (see ¶ 66 regarding the calculated estimated pool size); and adjusting at least one operating parameter of the pool device based on the volume of the pool (see ¶ 74). As to claim 14: Roy discloses the method of claim 13, wherein the sensor (not labeled but see the disclosed temperature sensors in ¶ 59) sends the first water temperature and the second water temperature measurements to the controller (12) (see ¶ 65). As to claim 15: Roy discloses the method of claim 14, wherein the sensor (not labeled but see the disclosed temperature sensors in ¶ 59) is communicatively coupled to the controller (12) via a network (see ¶ 67). As to claim 21: Roy discloses the method of claim 13, further comprising storing the volume of the pool in a memory of the controller (14; see fig. 1 and ¶ 54; the PoolSize variable utilized to represent the volume of the pool as noted in, e.g. ¶ 64). As to claim 22: Roy discloses the method of claim 13, wherein the at least one operating parameter is one or more of a filter run time, a pump speed, a chemical dosage rate, a heater run time, or a maintenance schedule (see ¶ 64 and ¶ 72). References Cited but not Relied Upon Alwerud US Pat 5,326,481 discloses a method for automatic dispensing of chlorine in swimming pools where a computer measures the pool water temperature and appears pertinent to Applicant’s disclosure. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JOHN M ROYSTON whose telephone number is (571)270-7215. The examiner can normally be reached M-F 8-4:30 E.S.T.. 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, Peter Macchiarolo can be reached at 571-272-2375. 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. /JOHN M ROYSTON/Examiner, Art Unit 2855
Read full office action

Prosecution Timeline

Dec 27, 2023
Application Filed
Feb 21, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

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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
78%
Grant Probability
95%
With Interview (+17.3%)
2y 7m
Median Time to Grant
Low
PTA Risk
Based on 639 resolved cases by this examiner. Grant probability derived from career allow rate.

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