Prosecution Insights
Last updated: July 17, 2026
Application No. 18/788,934

ROTARY VALVE

Final Rejection §102§DP
Filed
Jul 30, 2024
Priority
Dec 04, 2019 — provisional 62/943,425 +2 more
Examiner
DO, HAILEY KYUNG AE
Art Unit
3753
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Stormwell Inc.
OA Round
2 (Final)
74%
Grant Probability
Favorable
3-4
OA Rounds
6m
Est. Remaining
90%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allowance Rate
515 granted / 698 resolved
+3.8% vs TC avg
Strong +16% interview lift
Without
With
+16.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
22 currently pending
Career history
724
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
66.2%
+26.2% vs TC avg
§102
13.3%
-26.7% vs TC avg
§112
17.6%
-22.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 698 resolved cases

Office Action

§102 §DP
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 . Claim Interpretation The following is a quotation of 35 U.S.C. 112(f): (f) Element in Claim for a Combination. – An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The following is a quotation of pre-AIA 35 U.S.C. 112, sixth paragraph: An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The claims in this application are given their broadest reasonable interpretation using the plain meaning of the claim language in light of the specification as it would be understood by one of ordinary skill in the art. The broadest reasonable interpretation of a claim element (also commonly referred to as a claim limitation) is limited by the description in the specification when 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is invoked. As explained in MPEP § 2181, subsection I, claim limitations that meet the following three-prong test will be interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph: (A) the claim limitation uses the term “means” or “step” or a term used as a substitute for “means” that is a generic placeholder (also called a nonce term or a non-structural term having no specific structural meaning) for performing the claimed function; (B) the term “means” or “step” or the generic placeholder is modified by functional language, typically, but not always linked by the transition word “for” (e.g., “means for”) or another linking word or phrase, such as “configured to” or “so that”; and (C) the term “means” or “step” or the generic placeholder is not modified by sufficient structure, material, or acts for performing the claimed function. Use of the word “means” (or “step”) in a claim with functional language creates a rebuttable presumption that the claim limitation is to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites sufficient structure, material, or acts to entirely perform the recited function. Absence of the word “means” (or “step”) in a claim creates a rebuttable presumption that the claim limitation is not to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is not interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites function without reciting sufficient structure, material or acts to entirely perform the recited function. Claim limitations in this application that use the word “means” (or “step”) are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. Conversely, claim limitations in this application that do not use the word “means” (or “step”) are not being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. This application includes one or more claim limitations that use the word “means,” and are nonetheless being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, because the claim limitation(s) uses a generic placeholder that is coupled with functional language without reciting sufficient structure to perform the recited function and the generic placeholder is not preceded by a structural modifier. Such claim limitation(s) is/are: “shaft rotation mechanism” in claim 2, line 2, the corresponding structure for which can be found in the specification paragraph [0042]. Because this/these claim limitation(s) is/are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, it/they is/are being interpreted to cover the corresponding structure described in the specification as performing the claimed function, and equivalents thereof. If applicant does not intend to have this/these limitation(s) interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, applicant may: (1) amend the claim limitation(s) to avoid it/them being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph (e.g., by reciting sufficient structure to perform the claimed function); or (2) present a sufficient showing that the claim limitation(s) recite(s) sufficient structure to perform the claimed function so as to avoid it/them being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 1 and 2 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by EP2749761A1 (“Osmialowski”). Regarding claim 1, Osmialowski discloses (see figs. 1-4) a rotary valve comprising: a body portion including: a plug valve portion including a set of plugs (24 and 26); a body portion divider (at least partially defined by 20 and 22) including a set of holes (16 and 18) for receiving the set of plugs; and a shaft portion (32) wherein rotation of the shaft portion controls movement of the plug valve portion with respect to the body portion divider (between positions of figs. 2 and 3). Regarding claim 2, Osmialowski discloses a shaft rotation mechanism (mainly defined by 38, 40 and 42) for rotating the shaft portion when a predetermined condition (pressure control for turbocharger) is met thereby causing the set of plugs (24 and 26) to engage with the set of holes (16 and 18). Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1 and 2 are rejected on the ground of nonstatutory double patenting as being unpatentable over claim 1 of U.S. Patent No. 12072034 (“Patent A”). Although the claims at issue are not identical, they are not patentably distinct from each other because the narrower Patent A claim 1 anticipate the broader Application claims 1 and 2, see claims listing below. Application Claims Patent A Claims 1. A rotary valve comprising: a body portion including: a plug valve portion including a set of plugs; a body portion divider including a set of holes for receiving the set of plugs; and a shaft portion wherein rotation of the shaft portion controls movement of the plug valve portion with respect to the body portion divider. 1. A rotary valve for use in a liquid tank having a level of liquid comprising: a body portion including: a plug valve portion including a set of plugs; a body portion divider including a set of openings for receiving the set of plugs; and a shaft portion wherein rotation of the shaft portion controls movement of the plug valve portion with respect to the body portion divider; float rests mounted to opposite sides of the body portion; and a float assembly portion, the float assembly portion including a float portion and a pair of float arms connected to, and extending from, the float portion at a first end and connected to the shaft portion of the body portion at a second end; wherein a change in the level of liquid causes movement of the pair of float arms to urge the shaft portion to rotate thereby causing the set of plugs to engage with the set of openings. 2. The rotary valve of Claim 1 further comprising: a shaft rotation mechanism for rotating the shaft portion when a predetermined condition is met thereby causing the set of plugs to engage with the set of holes. Response to Arguments Applicant’s remarks filed April 1, 2026, have been fully considered. With regards to the 35 U.S.C. 102(a)(1) rejection of claim 1 over EP2749761 (“Osmialowski”), Applicant argues that “Therefore, one skilled in the art would understand that the plugs are engaged with the openings and are positioned within the openings for this engagement.” And further argues that “This is not the case in Osmialowski which shows in Figure 2 that the first valve member 24 and the second valve member 26 are positioned atop the first 16 and second 18 flow openings. The flow openings do not receive the plugs to seal the openings as claimed in Claim 1.” The Examiner respectfully disagrees. Although the Examiner agrees that the drawings of the present disclosure illustrate the plugs differently from that of Osmialowski, although the claims are interpreted in light of the specification, limitations from the specification are not read into the claims. See In re Van Geuns, 988 F.2d 1181, 26 USPQ2d 1057 (Fed. Cir. 1993). In the present case, the term “plug” is defined as “a piece used to close or fill a hole” (Merriam-Webster). The plugs (Osmialowski, 24 and 26) are reciprocated to close respective holes (Osmialowski, 16 and 18), more specifically, the set of holes (Osmialowski, 16 and 18) “receive” (defined by Merriam-Webster as “to come into possession of” or “to support the weight or pressure of”) the pair of plugs (Osmialowski, 24 and 26). For the reasons above, the prior art rejection of claims 1 and 2 over Osmialowski is maintained. Conclusion THIS ACTION IS MADE FINAL. 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 Hailey K. Do whose direct telephone number is (571)270-3458 and direct fax number is (571)270-4458. The examiner can normally be reached on Monday-Thursday (8:00AM-5:00PM ET) and Friday (8:00AM-12:00PM 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 supervisors, Kenneth Rinehart at 571-272-4881, or Craig M. Schneider at 571-272-3607. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /HAILEY K. DO/Primary Examiner, Art Unit 3753
Read full office action

Prosecution Timeline

Jul 30, 2024
Application Filed
Oct 01, 2025
Non-Final Rejection mailed — §102, §DP
Apr 01, 2026
Response Filed
Jun 26, 2026
Final Rejection mailed — §102, §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Patent 12663097
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Patent 12655916
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Patent 12655921
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2y 7m to grant Granted Jun 16, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
74%
Grant Probability
90%
With Interview (+16.1%)
2y 6m (~6m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 698 resolved cases by this examiner. Grant probability derived from career allowance rate.

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