Prosecution Insights
Last updated: October 04, 2026
Application No. 18/937,772

MANUFACTURING METHOD OF TRANSPIRATION-BASED POWER GENERATION DEVICE WITH IMPROVED WASHING RESISTANCE AND CONDUCTIVITY

Non-Final OA §103
Filed
Nov 05, 2024
Priority
Mar 11, 2024 — RE 10-2024-0034157
Examiner
TRUONG, THOMAS
Art Unit
Tech Center
Assignee
Chung-Ang University Industry Academic Cooperation Foundation
OA Round
1 (Non-Final)
73%
Grant Probability
Favorable
1-2
OA Rounds
9m
Est. Remaining
89%
With Interview

Examiner Intelligence

Grants 73% — above average
73%
Career Allowance Rate
950 granted / 1295 resolved
+13.4% vs TC avg
Strong +16% interview lift
Without
With
+15.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
30 currently pending
Career history
1316
Total Applications
across all art units

Statute-Specific Performance

§101
1.2%
-38.8% vs TC avg
§103
53.2%
+13.2% vs TC avg
§102
18.5%
-21.5% vs TC avg
§112
24.0%
-16.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1295 resolved cases

Office Action

§103
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 Group I (Claims 1-6, 12 and 13) in the reply filed on 08/19/2026 is acknowledged. Accordingly, claims 1-6, 12 and 13 remained pending and claims 7-11 are withdrawn from further consideration. Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. 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. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claims 1, 3-6, 12 and 13 are rejected under 35 U.S.C. 103 as being unpatentable over Kim et al. (US 11,404,222 B2) in view of Eskandarian et al. (US 2025/0367461 A1). RE claim 1, Kim teaches a transpiration-driven power generation device (see claim 1) with improved washing resistance and conductivity (intended use), the transpiration-driven power generation device comprising: a power generation part (fiber membrane); a first electrode (see claim 1 and Fig. 21) contacting the power generation part; a second electrode contacting the power generation part and spaced apart from the first electrode (see Fig.21); and a connection circuit (see col.6 line 20) electrically connecting the first electrode and the second electrode to each other (col.6 lines 20-25), wherein the power generation part includes a power generation material including poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) (see claim 9). Kim does not teach the power generation part including silk yarns and the power generation part includes a divinyl sulfone (DVS) as a crosslinker. Eskandarian teaches power generation part including silk yarns (¶ 123) and the power generation part includes a divinyl sulfone (DVS) as a crosslinker (¶ 132). Eskandarian suggests that the material can be adjusted to improve conductivity (¶ 123). Eskandarian further suggests that divinyl sulfone as a crosslinker can be used to improve the adhesion/mechanical/electrical properties (¶ 132). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Kim by having the power generation part including silk yarns and the power generation part includes a divinyl sulfone (DVS) as a crosslinker, as taught by Eskandarian, for the same reasons as discussed above. RE claim 3/1, Kim in view of Eskandarian has been discussed above. Kim in view of Eskandarian further teaches the power generation material is applied on the silk yarns (see Kim’s claim 13 for adsorption material is bound and coated to a surface of each fiber. Further, Eskandarian disclosed silk yarns as noted above in claim 1). RE claim 4/1, Kim in view of Eskandarian has been discussed above. Kim further teaches the first electrode contacting the power generation part is formed on a wet surface of the power generation part wet with water, wherein the second electrode spaced from the first electrode is formed on a dry surface of the power generation part free of water (col.6: 20-30). RE claim 5/4, Kim in view of Eskandarian has been discussed above. Kim further teaches the power is generated from a potential difference between a potential of the first electrode and a potential of the second electrode due to a difference between wetness of the first electrode and wetness of the second electrode contacting the wet surface and the dry surface, respectively, wherein the generated power is output through the connection circuit (see claims 2-5). RE claim 6/5, Kim in view of Eskandarian has been discussed above. Kim further teaches liquid absorbed on the wet surface is a liquid in which NaCl is dissolved (col.26: 15-20). RE claim 12/1, Kim in view of Eskandarian has been discussed above. Kim further teaches a wearable device (col.13: 28-32) comprising: the transpiration-driven power generation device having improved washing resistance and conductivity according to claim 1 (discussed above); and a power storage device connected to the connection circuit of the power generation device and configured to power therefrom (col.27: 30-40). Kim does not teach the power storage device further includes a power conversion unit configured to convert the received power into usable electricity. Eskandarian teaches the power storage device further includes a power conversion unit configured to convert the received power into usable electricity (see ¶ 208 for four capacitors can be used to deliver voltage from battery pack), doing so allows pre-determined value to be deliver (¶ 209). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Kim by having the power storage device further includes a power conversion unit configured to convert the received power into usable electricity, as taught by Eskandarian, for the same reasons as discussed above. RE claim 13/1, Kim in view of Eskandarian has been discussed above. Kim further teaches a floating structure on a sea (col.26: 50-55) comprising: the transpiration-driven power generation device having improved washing resistance and conductivity according to claim 1 (discussed above); and a power storage device connected to the connection circuit of the power generation device and configured to power therefrom (col.27: 30-40), wherein the power storage device further includes a power transmission unit configured to transmit electric energy stored in the power storage device to a load (see col.27: 35-40 for energy being stored in the storage system and used to drive electronic device. Therefore, a transmission unit is necessary for power to be present in order to transmit energy from storage to load). Claim 2 is rejected under 35 U.S.C. 103 as being unpatentable over Kim in view of Eskandarian as applied to claim 1 above, and further in view of Jin et al. (US 2019/0336942 A1). RE claim 2/1, Kim in view of Eskandarian has been discussed above. Kim does not teach a covalent bond is formed between the PSSs of the PEDOT:PSSs via the DVS. Jin evidenced that covalent bond is well-known for cross linking structure to improve the performance of the product that adsorbs and desorbs moisture (¶ 85). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Kim in view of Eskandarian by having a covalent bond is formed between the PSSs of the PEDOT:PSSs via the DVS, as suggested by Jin, for the same reasons as discussed above. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to THOMAS TRUONG whose telephone number is (571)270-5532. The examiner can normally be reached Monday-Friday 9AM-6PM EST. 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, Seye Iwarere can be reached at (571) 270-5112. 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. /THOMAS TRUONG/Primary Examiner, Art Unit 2834
Read full office action

Prosecution Timeline

Nov 05, 2024
Application Filed
Sep 08, 2026
Non-Final Rejection mailed — §103 (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
73%
Grant Probability
89%
With Interview (+15.8%)
2y 7m (~9m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1295 resolved cases by this examiner. Grant probability derived from career allowance rate.

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