Prosecution Insights
Last updated: May 04, 2026
Application No. 18/427,683

UNROLLING AN INFINITE LOOP DURING RAY QUERY TRAVERSAL

Non-Final OA §101
Filed
Jan 30, 2024
Examiner
FLORA, NURUN N
Art Unit
2619
Tech Center
2600 — Communications
Assignee
Qualcomm Incorporated
OA Round
1 (Non-Final)
86%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
87%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allowance Rate
336 granted / 393 resolved
+23.5% vs TC avg
Minimal +2% lift
Without
With
+1.8%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
19 currently pending
Career history
412
Total Applications
across all art units

Statute-Specific Performance

§101
5.5%
-34.5% vs TC avg
§103
46.7%
+6.7% vs TC avg
§102
27.1%
-12.9% vs TC avg
§112
9.6%
-30.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 393 resolved cases

Office Action

§101
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 . Drawings Drawings submitted on 1/30/2024 has been accepted by Examiner. Claim Rejections - 35 USC § 101 35 U.S.C. 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. Claim 20 is rejected under 35 U.S.C. 101 because the claimed invention is directed to non-statutory subject matter. The claim(s) does/do not fall within at least one of the four categories of patent eligible subject matter because, claim 20 seeks protection for “computer-readable medium”, which might potentially include carrier wave and/or transitory propagating signal under broadest reasonable interpretation. Transitory signals are not considered an invention protected under four statutory categories under 35 USC § 101 (see MPEP §2106). Therefore, claim 20 is rejected. However, a claim drawn to such a computer-readable medium that covers both transitory and non-transitory embodiments may be amended to narrow the claim to cover only statutory embodiments to avoid a rejection under 35 U.S.C. § 101 by adding the limitation "non-transitory" to the claim. Such an amendment would typically not raise the issue of new matter, even when the specification is silent because the broadest reasonable interpretation relies on the ordinary and customary meaning that includes signals per se. The limited situations in which such an amendment could raise issues of new matter occur, for example, when the specification does not support a non-transitory embodiment because a signal per se is the only viable embodiment such that the amended claim is impermissibly broadened beyond the supporting disclosure. See, e.g., Gentry Gallery, Inc. v. Berkline Corp., 134 F.3d 1473 (Fed. Cir. 1998). Prior and Pertinent Arts The prior and/or pertinent art(s) made of record and not relied upon is considered pertinent to applicant's disclosure, are: Du et al. (US 20230377240 A1), SHKURKO et al. (US 20230206543 A1), Ogawa et al. (US 11093224 B2), Mahadevan et al. (US 5797013 A) who disclose different loop unrolling methods of interest. Allowable Subject Matter Claims 1-20 allowed over prior art. The following is an examiner’s statement of reasons for allowance: Regarding claim 1, prior arts of record taken alone or in combination fails to reasonably disclose or suggest, obtain, during a compile time, at least one of (1) a number of loops associated with a bounding volume hierarchy (BVH) traversal based on a number of ray triangle intersections and a number of ray box intersections or (2) a set of features associated with the BVH traversal and code generation associated with a shader; determine, during the compile time, a loop unroll factor based on at least one of the obtained number of loops or the obtained set of features; adjust, during the compile time, a number of iterations of a loop associated with the BVH traversal based on the loop unroll factor; and output an indication of the adjusted number of iterations. Method claim 18 and CRM claim 20 also recite allowable feature(s) like claim 1 and thus allowable for same/similar reason(s) stated above. Any comments considered necessary by 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 NURUN FLORA whose telephone number is (571)272-5742. The examiner can normally be reached M-F 9:30 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, Jason Chan can be reached at 571-272-3022. 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. /NURUN FLORA/Primary Examiner, Art Unit 2614
Read full office action

Prosecution Timeline

Jan 30, 2024
Application Filed
Sep 06, 2025
Non-Final Rejection — §101
Apr 02, 2026
Response after Non-Final Action

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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
86%
Grant Probability
87%
With Interview (+1.8%)
2y 1m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 393 resolved cases by this examiner. Grant probability derived from career allowance rate.

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