Prosecution Insights
Last updated: July 17, 2026
Application No. 18/671,329

PHOSPHOR WHEEL, LIGHT SOURCE DEVICE, AND PROJECTION IMAGE DISPLAY DEVICE

Non-Final OA §DP
Filed
May 22, 2024
Priority
Jul 21, 2021 — JP 2021-120617 +1 more
Examiner
CRUZ, MAGDA
Art Unit
2882
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Panasonic Holdings Corporation
OA Round
1 (Non-Final)
87%
Grant Probability
Favorable
1-2
OA Rounds
1m
Est. Remaining
97%
With Interview

Examiner Intelligence

Grants 87% — above average
87%
Career Allowance Rate
754 granted / 865 resolved
+19.2% vs TC avg
Moderate +10% lift
Without
With
+9.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
9 currently pending
Career history
874
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
54.4%
+14.4% vs TC avg
§102
30.3%
-9.7% vs TC avg
§112
8.6%
-31.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 865 resolved cases

Office Action

§DP
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 . Information Disclosure Statement The information disclosure statement (IDS) submitted on 05/22/2024, 10/04/2024 and 04/11/2025 are in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statements are being considered by the examiner. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1, 8-9, 11-14 and 18-19 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-6 and 12-13 of U.S. Patent No. 12,032,277 B2. Although the claims at issue are not identical, they are not patentably distinct from each other because: Claim 1 reads on patented claims 1 and 3 as follow: a phosphor wheel (column 14, line 57) comprising: a first substrate having a first main surface and a second main surface (column 14, lines 58-59), the second main surface being opposite to the first main surface (column 14, lines 59-60); a phosphor ring provided on the first main surface of the first substrate (column 14, lines 62-63); a second substrate having a third main surface and a fourth main surface (column 14, lines 64-65), the fourth main surface being opposite to the third main surface (column 14, lines 65-66), the third main surface being located between the second main surface and the fourth main surface (column 14, line 66 through column 15, line 1); and a plurality of heat dissipation fins disposed at the fourth main surface side of the second substrate (column 15, lines 3-4), wherein the second main surface of the first substrate and the third main surface of the second substrate are in thermal contact with each other (column 15, lines 7-9), and the plurality of heat dissipation fins are disposed at positions at least partially overlapping the phosphor ring when viewed from the fourth main surface side of the second substrate (column 15, lines 31-33). Claim 8 reads on patented claim 1 (column 15, lines 10-19). Claim 9 reads on patented claim 2. Claim 11 reads on patented claim 4. Claim 12 reads on patented claim 5. Claims 13 and 14 read on patented claim 6. Claim 18 reads on patented claim 12. Claim 19 reads on patented claim 13. Allowable Subject Matter Claims 2-7, 10 and 15-17 are objected to as being dependent upon a rejected base claim, but would be allowable upon timely filing of terminal disclaimer in compliance with 37 CFR 1.321(c) to overcome the nonstatutory double patenting rejection. The following is a statement of reasons for the indication of allowable subject matter: Regarding claim 1, Tabayashi et al. (US Pub. No. 2022/0390822 A1) discloses a phosphor wheel (Figure 3, element 20) comprising: a first substrate (Figure 3, element 22) having a first main surface (Figure 3, element 22a) and a second main surface (Figure 3, element 22b), the second main surface (Figure 3, element 22b) being opposite to the first main surface 22a); a phosphor ring (Figure 3, element 23) provided on the first main surface (Figure 3, element 22a) of the first substrate (Figure 3, element 22); a second substrate (Figure 3, element 30) having a third main surface (Figure 3, element 30a) and a fourth main surface (Figure 3, element 30b), the fourth main surface (Figure 3, element 30b) being opposite to the third main surface (Figure 3, element 30a), the third main surface (Figure 3, element 30a) being located between the second main surface (Figure 3, element 22b) and the fourth main surface 30b); and a plurality of heat dissipation fins (Figure 3, element 31) disposed at the fourth main surface (Figure 3, element 30b) side of the second substrate (Figure 3, element 30). However, Tabayashi et al. and the prior art of record neither shows nor suggests a phosphor wheel comprising a second main surface of the first substrate and the third main surface of the second substrate are in thermal contact with each other, and the plurality of heat dissipation fins are disposed at positions at least partially overlapping the phosphor ring when viewed from the fourth main surface side of the second substrate. Regarding claims 2-19, the claims are allowable based on their dependence from claim 1. Since the prior art of record, individually or in combination, does not teach a phosphor wheel comprising a second main surface of the first substrate and the third main surface of the second substrate are in thermal contact with each other, and the plurality of heat dissipation fins are disposed at positions at least partially overlapping the phosphor ring when viewed from the fourth main surface side of the second substrate, a timely filed terminal disclaimer in compliance with 37 CFR 1.321 (c) may be used to overcome the rejection based on a nonstatutory double patenting and put the case in condition for allowance. Any comments considered necessary by the applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance”. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MAGDA CRUZ whose telephone number is (571)272-2114. The examiner can normally be reached Monday-Friday from 9:00 AM to 5:30 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, Toan Ton can be reached at 571-272-2303. 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. /MAGDA CRUZ/ Primary Examiner Art Unit 2882 05/22/2026
Read full office action

Prosecution Timeline

May 22, 2024
Application Filed
May 28, 2026
Non-Final Rejection mailed — §DP (current)

Precedent Cases

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3y 10m to grant Granted Jun 23, 2026
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PROJECTOR
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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
87%
Grant Probability
97%
With Interview (+9.6%)
2y 3m (~1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 865 resolved cases by this examiner. Grant probability derived from career allowance rate.

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