Prosecution Insights
Last updated: July 17, 2026
Application No. 18/868,774

POLYMER GEL FOR TRIBOELECTRIC ENERGY HARVESTER INCLUDING PLASTICIZER AND TRIBOELECTRIC ENERGY HARVESTER INCLUDING THE SAME

Non-Final OA §102
Filed
Nov 24, 2024
Priority
Dec 07, 2022 — RE 10-2022-0170070 +1 more
Examiner
CHANG, MINKI
Art Unit
Tech Center
Assignee
Korea University Of Technology And Education Industry-University Cooperation Foundation
OA Round
1 (Non-Final)
72%
Grant Probability
Favorable
1-2
OA Rounds
1y 1m
Est. Remaining
82%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allowance Rate
287 granted / 399 resolved
+11.9% vs TC avg
Moderate +10% lift
Without
With
+10.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
44 currently pending
Career history
438
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
80.1%
+40.1% vs TC avg
§102
8.6%
-31.4% vs TC avg
§112
9.3%
-30.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 399 resolved cases

Office Action

§102
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 Objections Claim 8 is objected to because of the following informalities: Claim 8, ll. 1, “a triboelectric energy harvester” was already recited in claim 1. Appropriate correction is required. Claim Rejections - 35 USC § 102 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 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. Claims 1-12 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Hirai et al. (JP 2015-198149 A). Regarding claim 1, Hirai disclose a polymer gel (gel polymer) for a triboelectric energy harvester (10; polymer is charged by friction) comprising a polymer resin (a polymer) and a plasticizer (a compound is added as a plasticizer to the polymer). PNG media_image1.png 190 1090 media_image1.png Greyscale Regarding claim 2/1, Hirai was discussed above in claim 1. Hirai further discloses the polymer resin (the polymer) comprises a polymer resin selected from the group consisting of polyvinyl chloride (PVC), polytetrafluoroethylene (PTFE), polyurethane (PU), polymethyl methacrylate (PMMA), polydimethylsiloxane (PDMS), polyvinyl alcohol (PVA), polyvinyl pyrrolidone (PVP), polyethylene oxide (PEO), polyimide (PI), polyethylene terephthalate (PET), and combinations thereof. PNG media_image2.png 162 1094 media_image2.png Greyscale Regarding claim 3/1, Hirai was discussed above in claim 1. Hirai further discloses the plasticizer (the compound) comprises a plasticizer selected from the group consisting of a phthalate-based plasticizer, an ester-based plasticizer, and combinations thereof. PNG media_image3.png 188 1074 media_image3.png Greyscale Regarding claim 4/3, Hirai was discussed above in claim 3. Hirai further discloses the phthalate-based plasticizer comprises a plasticizer selected from the group consisting of butyl benzoate (BB), dibutyl phthalate (DBP), tributylbenzene-1,2,4-tricarboxylate (TBT), di-2-ethylhexyl phthalate (DOP), diheptyl phthalate (DHP), diisodecyl phthalate (DIDP), and combinations thereof (see excerpt above). Regarding claim 5/3, Hirai was discussed above in claim 3. Hirai further discloses the ester-based plasticizer comprises a plasticizer selected from the group consisting of dibutyl adipate (DBA), ethylhexyl adipate (DOA), diisobutyl adipate (DIBA), adipic acid ester, adipic 14 acid polyester, tri-2-ethylhexyl trimellitate (TOTM), triisononyl trimellitate (TINTM), and combinations thereof (see excerpt above). Regarding claim 6/1, Hirai was discussed above in claim 1. Hirai further discloses the plasticizer (the compound) is present in an amount of 100 to 500 parts by weight with respect to 100 parts by weight of the polymer resin (the polymer; see excerpt below). PNG media_image4.png 128 1074 media_image4.png Greyscale Regarding claim 7/1, Hirai was discussed above in claim 1. Hirai further discloses the plasticizer (the compound) is present in an amount of 100 to 300 parts by weight with respect to 100 parts by weight of the polymer resin (the polymer; see excerpt above). Regarding claim 8/1, Hirai was discussed above in claim 1. Hirai further discloses a triboelectric energy harvester (10) comprising: a first electrode (2a) and a second electrode (2b), which are positioned spaced apart from each other; and a charged polymer layer (gel polymer near electrode 2a) comprising the polymer gel (gel polymer) according to claim 1, bonded to one surface of the first electrode (2a; gel polymer in the vicinity of the electrode 2a). Regarding claim 9/8, Hirai was discussed above in claim 8. Hirai further discloses the first electrode (2a) comprises a material selected from the group consisting of indium tin oxide (ITO), polyethylene terephthalate (PET), graphene, carbon nanotubes, and combinations thereof (see excerpt below). PNG media_image5.png 155 1068 media_image5.png Greyscale Regarding claim 10/8, Hirai was discussed above in claim 8. Hirai further discloses the second electrode (2b) comprises a metal selected from the group consisting of aluminum (Al), copper (Cu), titanium (Ti), gold (Au), silver (Ag), platinum (Pt), nickel (Ni), zinc (Zn), iron (Fe), cobalt (Co), and combinations thereof (see excerpt above). Regarding claim 11/8, Hirai was discussed above in claim 8. Hirai further discloses a conductive layer (1) bonded to one surface of the second electrode (2b; FIG. 2). Regarding claim 12/11, Hirai was discussed above in claim 11. Hirai further discloses the conductive layer (1) comprises a material selected from the group consisting of nylon, cotton, silk, wool, polyester, polyvinyl alcohol (PVA), polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polytetrafluoroethylene (PTFE), polycarbonate (PC), polyarylate (PAR), ethylene vinyl acetate (EVA), polyimide (PI), and combinations thereof (the mechanical stimulus response layer 1 is mainly composed of a gel-like polymer material; see excerpt below). PNG media_image2.png 162 1094 media_image2.png Greyscale Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MINKI CHANG whose telephone number is (571)270-0521. The examiner can normally be reached 9:00 AM - 5:00 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, 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. /MINKI CHANG/Examiner, Art Unit 2834
Read full office action

Prosecution Timeline

Nov 24, 2024
Application Filed
Jun 10, 2026
Non-Final Rejection mailed — §102 (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
72%
Grant Probability
82%
With Interview (+10.2%)
2y 9m (~1y 1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 399 resolved cases by this examiner. Grant probability derived from career allowance rate.

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