Prosecution Insights
Last updated: August 16, 2026
Application No. 18/932,505

SOLAR CELL WITH WRAPAROUND FINGER

Final Rejection §DOUBLEPATENT
Filed
Oct 30, 2024
Priority
Sep 28, 2018 — provisional 62/739,064 +1 more
Examiner
DINH, BACH T
Art Unit
1726
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Maxeon Solar Pte. Ltd.
OA Round
2 (Final)
55%
Grant Probability
Moderate
3-4
OA Rounds
1y 5m
Est. Remaining
86%
With Interview

Examiner Intelligence

Grants 55% of resolved cases
55%
Career Allowance Rate
543 granted / 984 resolved
-9.8% vs TC avg
Strong +31% interview lift
Without
With
+31.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
43 currently pending
Career history
1028
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
56.1%
+16.1% vs TC avg
§102
23.8%
-16.2% vs TC avg
§112
16.5%
-23.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 984 resolved cases

Office Action

§DOUBLEPATENT
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 . Summary This is the response to the Amendment/Request for reconsideration filed on 05/01/2026. Claims 1-20 remain pending in the application with claims 7-20 are withdrawn from consideration. Double Patenting Claims 1-6 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-13 of U.S. Patent No. 12,166,139 in view of Eisenberg et al. (DE102008040). Regarding claim 1, claims 1-2 of Pat. No. ‘139 recite the structural limitations of the claimed first solar cell including the interconnect that electrically connects the contact pad of the first solar cell and an insulating material positioned between the interconnect and the wrap-around metal finger, the insulating material configured to prevent a short between the interconnect and the wrap-around metal finger. Claim 1 of Pat No. ‘139 does not recite the PV string with a second solar cell that is connected to the first solar cell via the interconnect. Eisenberg discloses back contact solar cell similarly to the solar cell of claim 1 of Pat. No. ‘139; wherein, one solar cell is connected to an adjacent solar cell via the interconnect 20 with the insulating material positioned between the interconnect and the wrap-around metal finger and the insulating material is configured to prevent a short between the interconnect and the wrap-around metal finger. At the time of the effective filing date of the invention, one with ordinary skill in the art would have found it obvious to modify claims 1-2 of Pat. No. ‘139 with the second solar cell to form the PV string as disclosed by Eisenberg in order to increase the amount of power generated by the PV with the additional solar cells. Regarding claims 2-6, the limitations of claims 2-6 would have been obvious based on the limitations of claims 3-13 of Pat No. ‘139 and the teaching of Eisenberg. Response to Arguments Applicant’s arguments with respect to claim(s) 1-6 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to BACH T DINH whose telephone number is (571)270-5118. The examiner can normally be reached Mon-Friday 8:00 - 4:30 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, Jeffrey Barton can be reached at (571)-272-1307. 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. /BACH T DINH/Primary Examiner, Art Unit 1726 05/15/2026
Read full office action

Prosecution Timeline

Oct 30, 2024
Application Filed
Feb 03, 2026
Non-Final Rejection mailed — §DOUBLEPATENT
May 01, 2026
Response Filed
May 20, 2026
Final Rejection mailed — §DOUBLEPATENT (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Patent 12683539
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Patent 12684877
SOLAR CELL STRUCTURES FOR IMPROVED CURRENT GENERATION AND COLLECTION
1y 11m to grant Granted Jul 14, 2026
Patent 12672477
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1y 1m to grant Granted Jun 30, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
55%
Grant Probability
86%
With Interview (+31.3%)
3y 2m (~1y 5m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 984 resolved cases by this examiner. Grant probability derived from career allowance rate.

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