Prosecution Insights
Last updated: April 19, 2026
Application No. 18/115,026

NETWORKED BOILER SYSTEM

Non-Final OA §102
Filed
Feb 28, 2023
Examiner
DEEAN, DEEPAK A
Art Unit
3762
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Mestek Inc.
OA Round
5 (Non-Final)
49%
Grant Probability
Moderate
5-6
OA Rounds
3y 9m
To Grant
92%
With Interview

Examiner Intelligence

Grants 49% of resolved cases
49%
Career Allow Rate
198 granted / 406 resolved
-21.2% vs TC avg
Strong +43% interview lift
Without
With
+42.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
22 currently pending
Career history
428
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
44.3%
+4.3% vs TC avg
§102
22.5%
-17.5% vs TC avg
§112
28.3%
-11.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 406 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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 01/02/2026 has been entered. Response to Arguments Applicant's arguments filed 01/02/2026 have been fully considered but they are not persuasive. Regarding rejections under 35USC102 of claim 1, applicant argues that Paine has no disclosure of a hierarchical designation based on “operational status and specification associated with each of said boilers”. Examiner respectfully disagrees. col. 10 lines 42 – 52 of Paine expressly teaches considering ignition status, output threshold, and blower speed range; Fig. 7 and Col. 2 Ln. 27-35 expressly consider the output capacity of the boiler. Paine considers ignition status, blower speed range, and capacity (col. 10 lines 42 – 52, Col. 10 Ln. 9-27; Col. 11 Ln. 3-Col. 12 Ln. 3; Fig. 7, Col. 2 Ln. 27-35). Applicant argues that Paine does not suggest controlling the order of operation of the boilers. Examiner respectfully disagrees. Fig. 11 of Paine expressly teaches controlling an order of operation. Applicant argues that Paine does not teach “changing the order of control”. Applicant’s argument is not substantiated by the language of the claims. New claim 6 is restricted by original presentation. See below. Election/Restrictions Newly submitted claim 6 is directed to an invention that is independent or distinct from the invention originally claimed for the following reasons: Claim 6 is related to claim 1 and 5 as a method and an apparatus for its practice. Process and apparatus for its practice can be shown to be distinct inventions, if either or both of the following can be shown: (A) that the process as claimed can be practiced by another materially different apparatus or by hand; or (B) that the apparatus as claimed can be used to practice another materially different process. In the present case, the method of claim 6 does not required the sub boilers of claims 1 and 5. Since applicant has received an action on the merits for the originally presented invention, this invention has been constructively elected by original presentation for prosecution on the merits. Accordingly, claim 6 is withdrawn from consideration as being directed to a non-elected invention. See 37 CFR 1.142(b) and MPEP § 821.03. To preserve a right to petition, the reply to this action must distinctly and specifically point out supposed errors in the restriction requirement. Otherwise, the election shall be treated as a final election without traverse. Traversal must be timely. Failure to timely traverse the requirement will result in the loss of right to petition under 37 CFR 1.144. If claims are subsequently added, applicant must indicate which of the subsequently added claims are readable upon the elected invention. Should applicant traverse on the ground that the inventions are not patentably distinct, applicant should submit evidence or identify such evidence now of record showing the inventions to be obvious variants or clearly admit on the record that this is the case. In either instance, if the examiner finds one of the inventions unpatentable over the prior art, the evidence or admission may be used in a rejection under 35 U.S.C. 103 or pre-AIA 35 U.S.C. 103(a) of the other invention. 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) 1 and 5 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Paine (US 8,651,064 B2) (hereinafter “Paine”). The specification and drawings of Paine show all of the elements recited in claim 21 of this application. Regarding claim 1, Paine US8651064 discloses a networked boiler system comprising: a first boiler (10); at least one secondary boiler (15) in operative connection with said first boiler and (via unnumbered data line at the bottom of Fig. 3, see annotated Figs.1 and 3 below, the capitalized annotations denoting claim limitations) having a plurality of internal sub boilers (46 and 52 in Fig. 1); an external boiler control connected to said first boiler (building automation system 200 or computer 204, Fig. 3); and wherein said external boiler control enables said first boiler to control a boiler parameter of said first boiler (col. 7 lines 49 – 60), said at least one secondary boiler (15), and said plurality of internal sub boilers of said at least one secondary boiler (46 and 52, Fig. 1) according to a hierarchy for controlling said first boiler, said at least one secondary boiler and said plurality of internal sub boilers of said at least one secondary boiler (cascade control of first through fourth boiler units making up the first and second boiler, Fig. 11), wherein the hierarchy for controlling said first boiler, said at least one secondary boiler, and said plurality of internal sub boilers of said at least one secondary boiler is based on operational status and specifications associated with each of said boilers (ignition status, blower speed range, capacity, col. 10 lines 42 – 52, Col. 10 Ln. 9-27; Col. 11 Ln. 3-Col. 12 Ln. 3; Fig. 7, Col. 2 Ln. 27-35). PNG media_image1.png 611 915 media_image1.png Greyscale PNG media_image2.png 597 1015 media_image2.png Greyscale Regarding claim 5, Paine US8651064 discloses a networked boiler system, comprising: a first boiler (Fig. 1, 10); at least one secondary boiler in operative connection with said first boiler and having a plurality of internal sub boilers (Fig. 1, 15); an external boiler control connected to said first boiler (Fig. 5, 30); and wherein said external boiler control enables said first boiler to control an operational state of said first boiler, said secondary boiler, and said plurality of internal sub boilers according to a hierarchy, wherein said hierarchy for controlling said first boiler, said at least one secondary boiler, and said plurality of internal sub boilers is determined in association with operational status and specifications associated with each of said boilers (ignition status, blower speed range, capacity, col. 10 lines 42 – 52, Col. 10 Ln. 9-27; Col. 11 Ln. 3-Col. 12 Ln. 3; Fig. 7, Col. 2 Ln. 27-35). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. US 20180225244 A1 teaches a building management system which performs an algorithm to determine a new master controller device from the slave devices. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Deepak Deean whose telephone number is (571)270-3347. The examiner can normally be reached M-Th 10-4. 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, Edelmira Bosques can be reached at (571)270-5614. 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. /DEEPAK A DEEAN/ Examiner, Art Unit 3762 /MICHAEL G HOANG/ Supervisory Patent Examiner, Art Unit 3762
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Prosecution Timeline

Feb 28, 2023
Application Filed
Oct 02, 2023
Non-Final Rejection — §102
Jan 22, 2024
Response Filed
Apr 12, 2024
Final Rejection — §102
Sep 26, 2024
Request for Continued Examination
Oct 03, 2024
Response after Non-Final Action
Jan 25, 2025
Non-Final Rejection — §102
Aug 01, 2025
Response Filed
Sep 24, 2025
Final Rejection — §102
Jan 02, 2026
Request for Continued Examination
Feb 15, 2026
Response after Non-Final Action
Feb 21, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12571544
A METHOD AND AN APPARATUS FOR DETERMINING A DEVIATION IN A THERMAL ENERGY CIRCUIT
2y 5m to grant Granted Mar 10, 2026
Patent 12558936
Heating Arrangement and Heat Distribution Unit for Such a Heating Arrangement
2y 5m to grant Granted Feb 24, 2026
Patent 12546486
RADIANT HEATING INSTALLATION SYSTEMS
2y 5m to grant Granted Feb 10, 2026
Patent 12486986
PORTABLE HEATER WITH INTERCHANGEABLE BATTERY
2y 5m to grant Granted Dec 02, 2025
Patent 12486988
METHOD FOR THE PREDICTIVE MAINTENANCE OF PRIMARY CIRCUIT COMPONENTS OF A BOILER
2y 5m to grant Granted Dec 02, 2025
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
49%
Grant Probability
92%
With Interview (+42.9%)
3y 9m
Median Time to Grant
High
PTA Risk
Based on 406 resolved cases by this examiner. Grant probability derived from career allow rate.

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