Prosecution Insights
Last updated: July 17, 2026
Application No. 18/593,205

SYSTEM AND METHOD FOR CRYOGENIC THERMAL CONDITIONING OF COLD CHAIN PHASE CHANGE MATERIAL PANELS

Non-Final OA §103§112
Filed
Mar 01, 2024
Priority
Dec 12, 2023 — provisional 63/609,039
Examiner
SULLENS, TAVIA L
Art Unit
3763
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Peli Biothermal LLC
OA Round
1 (Non-Final)
50%
Grant Probability
Moderate
1-2
OA Rounds
1y 0m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 50% of resolved cases
50%
Career Allowance Rate
264 granted / 533 resolved
-20.5% vs TC avg
Strong +46% interview lift
Without
With
+46.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
36 currently pending
Career history
570
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
87.6%
+47.6% vs TC avg
§102
2.9%
-37.1% vs TC avg
§112
9.3%
-30.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 533 resolved cases

Office Action

§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 . Election/Restrictions Applicant’s election without traverse of Invention II, claims 2-4 in the reply filed on 20 March 2026 is acknowledged. Claims 1 and 5-11 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected Invention, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 20 March 2026. 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 2-4 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 2 recites the limitation “for continuously transporting phase change material panels” following the preamble limitation “for thermal conditioning of cold chain phase change material panels”. It is unclear if these are the same or different. It is believed that they are the same and that the claim should read “for continuously transporting the phase change material”. Claims 3-4 are rejected insofar as they are dependent on claim 2 and therefore include the same error(s). Claim 3 is 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 3 recites the limitation “wherein the desired temperature within the first thermal conditioning chamber is a temperature effective for thermally conditioning phase change material panels conveyed through the first thermal conditioning chamber to deep-frozen phase change material panels”. This limitation is unclear in view that it requires reference to an object that is variable; that is, phase change materials have a plurality of melting/freezing points, and thus the reference is based on a phase change material of unspecified properties. Additionally, it is unclear if “phase change material panels” are the same or different from those of claim 2. It is believed that they are the same. Claim 4 is 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 4 recites the limitation “wherein the desired temperature within the second thermal conditioning chamber is a temperature effective for thermally conditioning deep-frozen phase change material panels conveyed through the second thermal conditioning chamber to thermally tempered phase change material panels”. This limitation is unclear in view that it requires reference to an object that is variable; that is, phase change materials have a plurality of melting/freezing points, and thus the reference is based on a phase change material of unspecified properties. Additionally, it is unclear if “deep-frozen phase change material panels” are the same or different from those of claim 2 or if claim 4 was intended to depend on claim 3. Claim Rejections - 35 USC § 103 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 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) 2-4 is/are rejected under 35 U.S.C. 103 as being unpatentable over Crul (US 6,195,908) in view of Thomas et al. (US 2004/0216470). Regarding claim 2, Crul discloses a two-stage inline system (see at least deep-freezing device #1/contact dryer #3) for thermal conditioning of cold chain phase change material panels containing a phase change material having a melt temperature (see MPEP 2114 II; MPEP 2115), comprising: (a) a first enclosure defining a first thermal conditioning chamber (see at least deep-freezing device #1), (b) a second enclosure defining a second thermal conditioning chamber (see at least contact dryer #3), (c) a first temperature control system for controlling the temperature within the first thermal conditioning chamber (see at least column 4, lines 37-42; column 2, lines 30-36: temperature control system is implicit), comprising: (i) means for introducing a cryogenic fluid from a source of cryogenic fluid into the first thermal conditioning chamber (see at least column 4, lines 37-42: liquid nitrogen is a cryogenic fluid), and (ii) a controller for controlling the quantity of cryogenic fluid sprayed into the first thermal conditioning chamber to achieve and maintain a desired temperature within the first thermal conditioning chamber (see at least column 4, lines 37-42; column 2, lines 30-36: classic manner is indicative of a controller to maintain the specified range), (d) a second temperature control system for controlling the temperature within the second thermal conditioning chamber (see at least column 3, lines 9-22; column 3, lines 30-34: regulation is indicative of control in the manner required below), comprising: (i) a heat source for introducing heat into the second thermal conditioning chamber (see at least column 3, lines 9-22: a plurality of heat sources are discussed), and (ii) a controller for controlling the introduction of heat into the second thermal conditioning chamber to achieve and maintain a desired temperature within the second thermal conditioning chamber (see at least column 3, lines 9-22; column 3, lines 30-34: introduction of heat is regulated both by heating and control of air supply), and (e) a driven conveyor system for continuously transporting phase change material panels from a conveyor loading position through the first and second enclosures and then to a conveyor unloading position (see at least conveyors #25/#4/#5/#23/#31; unloading position downstream of conveyor #31; see MPEP 2114 II; MPEP 2115). Crul is silent regarding the means for introducing the cryogenic fluid being spray nozzles, and Crul does not explicitly disclose a controller for controlling the quantity of cryogenic fluid sprayed into the first thermal conditioning chamber to achieve and maintain a desired temperature within the first thermal conditioning chamber, though as noted above, Crul likely discloses such. Thomas et al. teaches another temperature control system for a thermal conditioning chamber having spray nozzles for introducing a cryogenic fluid from a source of cryogenic fluid (see at spray bar #38 having a plurality of orifices to evenly inject and distribute liquid cryogen) and a controller for controlling the quantity of cryogenic fluid sprayed into the first thermal conditioning chamber to achieve and maintain a desired temperature within the first thermal conditioning chamber (see at least paragraph [0038]). It would have been obvious to one having ordinary skill in the art before the effective filing date of the invention to provide the system of Crul with the means for introducing the cryogenic fluid being spray nozzles, and a controller for controlling the quantity of cryogenic fluid sprayed into the first thermal conditioning chamber to achieve and maintain a desired temperature within the first thermal conditioning chamber, as taught by Thomas et al., to improve the system of Crul by allowing for even distribution of the cryogenic fluid according to desired temperature profile(s). Regarding the phase change material panels, as noted above, Applicant is reminded that the material or article worked upon does not limit an apparatus claim and that the manner of operating a device does not differentiate an apparatus claim from the prior art (see MPEP 2115 and MPEP 2114 II). Regarding claim 3, Crul further discloses wherein the desired temperature within the first thermal conditioning chamber is a temperature effective for thermally conditioning phase change material panels conveyed through the first thermal conditioning chamber to deep-frozen phase change material panels (see at least column 2, lines 30-36: it appears that the temperature(s) in Crul correspond to at least some of those contemplated by Applicant; see also column 4, lines 37-42: use of liquid nitrogen would enable lower temperatures than those explicitly set forth). Regarding claim 4, Crul further discloses wherein the desired temperature within the second thermal conditioning chamber is a temperature effective for thermally conditioning deep-frozen phase change material panels conveyed through the second thermal conditioning chamber to thermally tempered phase change material panels (see at least column 3, lines 9-22: it appears that the temperature(s) in Crul correspond to at least some of those contemplated by Applicant). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to TAVIA SULLENS whose telephone number is (571)272-3749. The examiner can normally be reached M-R 6:30-4:30 Eastern. 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, Jianying Atkisson can be reached at 571-270-7740. 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. /TAVIA SULLENS/Primary Examiner, Art Unit 3763
Read full office action

Prosecution Timeline

Mar 01, 2024
Application Filed
Jun 03, 2026
Non-Final Rejection mailed — §103, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12669262
WATER LEVEL CONTROL METHOD OF AIR CONDITIONER AND AIR CONDITIONER
2y 11m to grant Granted Jun 30, 2026
Patent 12669263
PORTABLE AIR CONDITIONER
2y 5m to grant Granted Jun 30, 2026
Patent 12644631
ROTARY COMPRESSOR AND REFRIGERATION CYCLE DEVICE
3y 3m to grant Granted Jun 02, 2026
Patent 12636937
Vehicle Temperature Management System
5y 1m to grant Granted May 26, 2026
Patent 12638229
HEAT PUMP
2y 9m to grant Granted May 26, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
50%
Grant Probability
96%
With Interview (+46.4%)
3y 5m (~1y 0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 533 resolved cases by this examiner. Grant probability derived from career allowance 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