Prosecution Insights
Last updated: April 19, 2026
Application No. 18/789,798

Personal Hydration System With Cooling or Warming Capability

Non-Final OA §102§103§112
Filed
Jul 31, 2024
Examiner
CHEYNEY, CHARLES
Art Unit
3754
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Government Of The United States AS Represented By The Secretary Of The Air Force
OA Round
1 (Non-Final)
56%
Grant Probability
Moderate
1-2
OA Rounds
2y 8m
To Grant
99%
With Interview

Examiner Intelligence

Grants 56% of resolved cases
56%
Career Allow Rate
436 granted / 777 resolved
-13.9% vs TC avg
Strong +43% interview lift
Without
With
+43.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
60 currently pending
Career history
837
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
53.9%
+13.9% vs TC avg
§102
26.4%
-13.6% vs TC avg
§112
14.6%
-25.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 777 resolved cases

Office Action

§102 §103 §112
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 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, 2, 4, 6, 7, and 9 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 "a pump,” “a reservoir,” and “a pad" after already introducing these features earlier in the claim. It is unclear whether the Applicant is referring back to the previously introduced feature or intends to introduce another. There is insufficient antecedent basis for this limitation in the claim. Claims 2, 4, 6, 7,and 9 are rejected for their incorporation of the above through their dependency of clam 1. 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)(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. Claim(s) 1, 2, 4, 6, 10, 12-15, and 17-19 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Stubbs (US 2021/0212391 A1) as evidenced by Li et al. (US 2017/0231371 A1). Re: Claim 1, Stubbs discloses the claimed invention including a portable liquid transport system for attachment to a supporting article worn by a wearer, said system being configured for transporting cooling or heating liquid between a reservoir and a cooling and/or heating pad, which pad is configured for wearing adjacent to a wearer's body, wherein said liquid transport system is configured to be joined to such a reservoir (20) and a pad (10) (Fig. 1), said liquid transport system comprising: a pump (16) for generating the flow of a liquid between a reservoir and a pad, said pump comprising an inlet and an outlet, wherein said inlet is configured to be in liquid communication with a reservoir and said outlet is configured to be in liquid communication with a pad (Depicted in Fig. 1, Para. 16, pump); wherein said liquid transport system further comprises a plurality of conduits (22, 24, 26, 38) each of said conduits being in liquid communication with at least one of said pump and said pad (Fig. 1), wherein said liquid transport system is configured for directing the flow of liquid from the reservoir into multiple flow paths when said liquid transport system is joined to a reservoir and a pad, said multiple flow paths comprising: a first flow path (26) from a reservoir through said pump to a pad to deliver chilled or heated liquid from the reservoir to the pad (Fig. 1); a second flow path (22) from the pad to the reservoir to recirculate the liquid back into the reservoir (Fig. 1). Re: Claim 2, Stubbs discloses the claimed invention including combination with a supporting article comprising a body armor ballistic plate carrier (42) that supports said system on a wearer's body (Para. 14, body armor carrier). Re: Claim 4, Stubbs discloses the claimed invention including wherein the plurality of conduits comprise: a first conduit (26) having a first end portion and a second end portion, wherein the first end portion of the first conduit is configured for connecting to a reservoir, and wherein the second end portion of the first conduit is connected to the inlet of said pump (Fig. 1); a second conduit (24) having a first end portion and a second end portion, wherein the first end portion of the second conduit is connected to the outlet of said pump, and wherein the second end portion of the second conduit is configured for connecting to a pad that is configured for wearing adjacent to a wearer's body (Fig. 1); and a third conduit (22) having a first end portion and a second end portion, wherein the first end portion of the third conduit is configured for connecting to a pad that is configured for wearing adjacent to a wearer's body and said second end portion of the third conduit is configured for connecting to a reservoir (Fig. 1). Re: Claim 6, Stubbs discloses the claimed invention including the pump is selected from the group consisting of an electric pump, a manual pump, and a passive pumping mechanism (Para. 8, electric pump). Re: Claim 10, Stubbs discloses the claimed invention including a wearable portable personal system (100) with cooling and/or heating capability, said personal system comprising: a reservoir (20) for containing a cooling or heating substance that comprises at least some chilled or heated liquid, said reservoir being configured for carrying by a wearer on a supporting article (42) (Figs. 1 and 3, Para. 15, reservoir of cooling substance); a pad (10) configured for wearing adjacent to a portion of a wearer's body, said pad being in liquid communication with said reservoir (Figs. 1 and 3); a pump (16) in liquid communication with said reservoir and said pad, said pump configured for generating the flow of a liquid from one of said reservoir and said pad when said pump is activated, said pump having an inlet and an outlet (Fig. 1, Para. 16, pump generating flow within the system); a plurality of conduits (22, 24, 26, 38), each of said conduits being in liquid communication with at least one of said pump and said reservoir, wherein said conduits are configured for directing the flow of liquid from the reservoir into multiple flow paths (Fig. 1), said multiple flow paths comprising: a) a first flow path (26, 24) from a reservoir through said pump to a pad to deliver chilled or heated liquid from the reservoir to the pad (Fig. 1); and b) a second flow path (22) from the pad to the reservoir to recirculate the liquid back into the reservoir (Fig. 1). Re: Claim 12, Stubbs discloses the claimed invention including combination with a supporting article comprising a body armor ballistic plate carrier that supports said system on a wearer's body (Para. 14, body armor carrier). Re: Claim 13, Stubbs discloses the claimed invention including the body armor ballistic plate carrier (42) comprises a pocket for a ballistic plate, and the cooling/heating pad is placed inside the pocket for a ballistic plate (Depicted in Fig. 3, Para. 17, placed between body and plate and inherently capable of being placed in the pocket of the carrier as evidenced by Li in para. 41, 57). Re: Claim 14, Stubbs discloses the claimed invention including the cooling/heating pad is placed inside the pocket for a ballistic plate and a ballistic plate is also positioned inside said pocket, wherein said cooling/heating pad is positioned between the ballistic plate and the wearer's body (Depicted in Fig. 3, Para. 17, placed between body and plate and inherently capable of being placed in the pocket of the carrier as evidenced by Li in para. 41, 57)). Re: Claim 15, Stubbs discloses a device capable of performing the claimed method of cooling or warming a user's body comprising: wearing a personal system with temperature adjustment capability, said system comprising: a reservoir (20) for containing a cooling or heating substance at least some of which is a liquid; a pad (10) configured for wearing adjacent to a portion of a wearer's body; a pump (16) configured for generating the flow of liquid between said reservoir and said pad when said pump is activated, said pump having an inlet and an outlet (Fig. 1, Para. 16, pump generating flow within the system).; a plurality of conduits (22, 24, 26, 38) each having a first end portion and a second end portion (Fig. 1), wherein said plurality of conduits comprise: an outflow line (26) extending between the reservoir and the inlet of the pump (Fig. 1); a pad inflow line (24) extending between the outlet of the pump and the pad (Fig. 1); and a return line (22) extending between the pad and the reservoir (Fig. 1); and activating said pump to transport liquid from said reservoir to said pad in order to cool or warm the wearer, said pump being activated so that after cooling or warming the wearer, some of said liquid is recirculated from said pad back into said reservoir (Fig. 1, Para. 16, pump generating flow within the system). Re: Claim 17, Stubbs discloses a device capable of performing the claimed method of said system is joined to a body armor ballistic plate carrier (45) worn by the user plate (Depicted in Fig. 3, Para. 17, placed between body and plate and inherently capable of being placed in the pocket of the carrier as evidenced by Li in para. 41, 57)). Re: Claim 18, Stubbs discloses a device capable of performing the claimed method of the body armor ballistic plate carrier comprises a pocket for a ballistic plate, and the cooling/heating pad is placed inside the pocket for a ballistic plate (Depicted in Fig. 3, Para. 17, placed between body and plate and inherently capable of being placed in the pocket of the carrier as evidenced by Li in para. 41, 57)). Re: Claim 19, Stubbs discloses a device capable of performing the claimed method of the cooling/heating pad is placed inside the pocket for a ballistic plate and a ballistic plate is also positioned inside said pocket, wherein said cooling/heating pad is positioned between the ballistic plate and the wearer's body (Depicted in Fig. 3, Para. 17, placed between body and plate and inherently capable of being placed in the pocket of the carrier as evidenced by Li in para. 41, 57)). Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claim(s) 7 and 9 is/are rejected under 35 U.S.C. 103 as being unpatentable over Stubbs (US2021/0212391 A1) as applied to claim 6 above, and further in view of Bueley et al. (US 2004/00795517 A1). Re: Claim 7, Stubbs discloses the claimed invention including the pump comprises an electric pump, except for electric pump is a diaphragm pump. However, Bueley teaches a portable liquid transport system worn by a wearer including an electric diaphragm pump (Para. 33, diaphragm pump). It would have been obvious to one having ordinary skill in the art at the time of the effective filing date to include a diaphragm pump as taught by Bueley, since such a modification is known in the art to be low maintenance, small/portable, and operationally efficient that one of ordinary skill would select as a matter of obvious design choice. Re: Claim 9, Stubbs discloses the claimed invention including a switch (28) electrically connected to said (diaphragm) pump for turning said pump on and off (Stubbs: Para. 16, on/off switch). Claim(s) 11 and 16 is/are rejected under 35 U.S.C. 103 as being unpatentable over Stubbs (US2021/0212391 A1). Re: Claim 11, Stubbs discloses the claimed invention including the reservoir and the pad each have a liquid holding capacity, and the liquid holding capacity of the reservoir is large (Para. 17, has extra capacity to carry excess fluid in the system) except for expressly stating greater than that of the pad. However, it would have been obvious to one having ordinary skill in the art at the time of the effective filing date to include a reservoir with a greater capacity than the pad, since Federal Circuit has held that, where the only difference between the prior art and the claims was a recitation of relative dimensions of the claimed device and a device having the claimed relative dimensions would not perform differently than the prior art device, the claimed device was not patentably distinct from the prior art device. MPEP 2144.04(IV)(A) (discussing Gardner v. TEC Syst., Inc., 725 F.2d 1338, 220 USPQ 777 (Fed. Cir. 1984), cert. denied, 469 U.S. 830, 225 USPQ 232 (1984)). Further, applicant appears to have placed no criticality on any particular angle (see Specification wherein it is required simply that the capacity “may be” greater) and it appears that the device of Stubbs would work appropriately if made within the claimed relative capacities. Re: Claim 16, Stubbs discloses a device capable of performing the claimed method of the reservoir and the pad each have a liquid holding capacity, and the liquid holding capacity of the reservoir is large (Para. 17, has extra capacity to carry excess fluid in the system) except for expressly stating greater than that of the pad. . However, it would have been obvious to one having ordinary skill in the art at the time of the effective filing date to include a reservoir with a greater capacity than the pad, since Federal Circuit has held that, where the only difference between the prior art and the claims was a recitation of relative dimensions of the claimed device and a device having the claimed relative dimensions would not perform differently than the prior art device, the claimed device was not patentably distinct from the prior art device. MPEP 2144.04(IV)(A) (discussing Gardner v. TEC Syst., Inc., 725 F.2d 1338, 220 USPQ 777 (Fed. Cir. 1984), cert. denied, 469 U.S. 830, 225 USPQ 232 (1984)). Further, applicant appears to have placed no criticality on any particular angle (see Specification wherein it is required simply that the capacity “may be” greater) and it appears that the device of Stubbs would work appropriately if made within the claimed relative capacities. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. References cited on the PTO-892 provide additional examples of worn coolant circulating systems. Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHARLES P. CHEYNEY whose telephone number is (571)272-9971. The examiner can normally be reached Monday - Friday, 8:00 am - 4:30 pm. 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, Paul Durand can be reached at 571-272-4459. 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. /CHARLES P. CHEYNEY/Primary Examiner, Art Unit 3754
Read full office action

Prosecution Timeline

Jul 31, 2024
Application Filed
Feb 06, 2026
Non-Final Rejection — §102, §103, §112 (current)

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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
56%
Grant Probability
99%
With Interview (+43.4%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 777 resolved cases by this examiner. Grant probability derived from career allow rate.

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