Prosecution Insights
Last updated: April 19, 2026
Application No. 18/735,202

VECTOR CANCELLING COMPRESSOR DEVICE AND A METHOD THEREOF

Non-Final OA §102§103§112
Filed
Jun 06, 2024
Examiner
RUPPERT, ERIC S
Art Unit
3763
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Entropy Engines Limited
OA Round
1 (Non-Final)
59%
Grant Probability
Moderate
1-2
OA Rounds
2y 10m
To Grant
83%
With Interview

Examiner Intelligence

Grants 59% of resolved cases
59%
Career Allow Rate
437 granted / 739 resolved
-10.9% vs TC avg
Strong +24% interview lift
Without
With
+24.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
55 currently pending
Career history
794
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
48.5%
+8.5% vs TC avg
§102
21.1%
-18.9% vs TC avg
§112
27.3%
-12.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 739 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 Claim 5 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. The term “high pressure gas” in claim 5 is a relative term which renders the claim indefinite. The term “high pressure” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the 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 Akiba (JP58210486A). Regarding claim 1, Akiba discloses a vector cancelling condenser device (Fig. 1-3) comprising: a body (8) defined by at least one wall (see wall(s) thereof) and an enclosed space (interior thereof); and at least one pair of delivery tubes (12, 12’) having a pair of gas outlets (outlets of 12, 12’) in the body, wherein the pair of gas outlets are facing each other and configured to cancel the velocity of gas coming out from the gas outlets (collides with each other to eliminate the velocity energy of the steam – Page 1) to forms saturated vapor of the gas and condensed liquid formed by releasing latent heat of condensation from the saturated vapors. Regarding claim 5, Akiba discloses a vector cancelling condensing method (Fig. 1-3) comprises steps of: suppling high pressure gas to a plurality of delivery tubes having a pair of gas outlets (110a, 110b) facing each other; cancelling the velocity of gas coming out from the gas outlets and converts the gas into saturated vapors (collides with each other to eliminate the velocity energy of the steam – Page 1); condensing (condensed – Page 2) the saturated vapors partially into condensed liquid; extracting the latent heat of condensation released from the partial condensation of the saturated vapors into liquid (via pipes 10); and collecting the condensed liquid (see outlet of 8 in Fig. 1). 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) 2 is/are rejected under 35 U.S.C. 103 as being unpatentable over Akiba (JP58210486A) in view of Bronicki (US4542625). Regarding claim 2, Akiba teaches the limitations of claim 1, and Akiba further teaches the vector cancelling condenser device further comprises: at least one heat extracting pipe (10) provided in the body (8) and the heat extracting pipe is configured to extract the latent heat of condensation released from the condensation of saturated vapors; and a liquid collector (see outlet of 8 in Fig. 1) configured to collect the condensed liquid. Akiba does not teach wherein the heat extracting pipe is a coil. Bronicki teaches wherein the heat extracting pipe is a coil (heat exchanger coil 25/41 Fig. 1-4). Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to have modified Akiba to include wherein the steam condenser is a shell and coil heat exchanger, as taught by Bronicki, as it has been held obvious to provide a simple substitution of one known element for another to obtain predictable results (see MPEP 2143). Claim(s) 3 is/are rejected under 35 U.S.C. 103 as being unpatentable over Akiba (JP58210486A) in view of Han (CN109990614A). Regarding claim 3, Akiba teaches the limitations of claim 1, and Akiba does not teach wherein the vector cancelling condenser device (100) further comprises at least one heat extracting jacket provided in the body (102) and the heat extracting jacket is configured to extract the latent heat of condensation released from the condensation of saturated vapors. Han teaches the condenser device (Fig. 1-3) further comprises at least one heat extracting jacket (5 & 6) provided in the body and the heat extracting jacket is configured to extract the latent heat of condensation released from the condensation of saturated vapors. Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to have modified Akiba to include the jacket of Han, in order to improve efficiency (Page 4). Claim(s) 4 is/are rejected under 35 U.S.C. 103 as being unpatentable over Akiba (JP58210486A) in view of Blangetti (US5018572A). Regarding claim 4, Akiba teaches the limitations of claim 1, and Akiba does not teach the shape of the body (102) is selected from sphere, cylinder, cube, cuboid, hexagonal cylinder, polygonal cylinder. Blangetti teaches the shape of the body is selected from sphere, cylinder, cube, cuboid, hexagonal cylinder, polygonal cylinder (cuboidal condenser – Col. 3, lines 55-65). Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to have modified Akiba to include wherein the steam condenser is a shell and coil heat exchanger, as taught by Blangetti, as it has been held obvious to try when choosing from a finite number of identified, predictable solutions, with a reasonable expectation of success (see MPEP 2143). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ERIC S RUPPERT whose telephone number is (571)272-9911. The examiner can normally be reached Monday - Friday 8 am - 4 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, Len Tran can be reached at 571-272-1184. 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. /ERIC S RUPPERT/Primary Examiner, Art Unit 3763
Read full office action

Prosecution Timeline

Jun 06, 2024
Application Filed
Jan 20, 2026
Non-Final Rejection — §102, §103, §112 (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
59%
Grant Probability
83%
With Interview (+24.1%)
2y 10m
Median Time to Grant
Low
PTA Risk
Based on 739 resolved cases by this examiner. Grant probability derived from career allow rate.

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