Prosecution Insights
Last updated: July 17, 2026
Application No. 18/971,651

SMOKE DETECTOR WITH LIGHT SOURCE ILLUMINATING TOWARD LIGHT SENSOR

Non-Final OA §102§112
Filed
Dec 06, 2024
Priority
Nov 24, 2020 — provisional 63/117,479 +3 more
Examiner
HUNNINGS, TRAVIS R
Art Unit
2689
Tech Center
2600 — Communications
Assignee
Pixart Imaging Inc.
OA Round
1 (Non-Final)
83%
Grant Probability
Favorable
1-2
OA Rounds
7m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allowance Rate
949 granted / 1148 resolved
+20.7% vs TC avg
Moderate +14% lift
Without
With
+13.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 2m
Avg Prosecution
20 currently pending
Career history
1161
Total Applications
across all art units

Statute-Specific Performance

§101
2.3%
-37.7% vs TC avg
§103
69.7%
+29.7% vs TC avg
§102
7.0%
-33.0% vs TC avg
§112
4.6%
-35.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1148 resolved cases

Office Action

§102 §112
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 has elected Invention I, claims 1-5. Applicant’s traversal of the restriction requirement is Applicant's election with traverse of Invention 1, claims 1-5, in the reply filed on 5/26/2026 is acknowledged. The traversal is on the ground(s) that Inventions I and III are sufficiently related that it would not impose a serious burden. This is not found persuasive because the inventions are distinct enough that a serious burden would in fact exist. The requirement is still deemed proper and is therefore made FINAL. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claim 4 recites the limitation “another light directing element” and "the lens" in the claim language. There is insufficient antecedent basis for this limitation in the claim. 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. Claim(s) 1, 2, 3, 4, 5 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Shibuya (US 20150146204). Regarding claim 1, A smoke detector, comprising: a substrate; (Shibuya: figure 2) a light source, arranged on an upper surface of the substrate; (Light emitting element 8, Shibuya: figure 2) a ring wall, arranged on the upper surface of the substrate, and comprising an accommodation space for accommodating the light source therein, (Light emitting element accommodation portion 11, Shibuya: figure 2) and an opening connecting to the accommodation space and opposite to the light source, wherein a cross section of the opening is smaller than that of the accommodation space; (hole seen in front of the light emitting element, Shibuya: figure 2; optical window portion 12, Shibuya: figure 1) and a light sensor, arranged on the upper surface of the substrate. (light receiving element 9, Shibuya: figure 2) Regarding claim 2, The smoke detector as claimed in claim 1, further comprising a light directing element, mounted on the ring wall and comprising: a lens, arranged upon the opening, and an optical axis thereof being tilted toward the light sensor; and a light reflecting member, arranged on a peripheral surface of the lens at a side of the lens farther from the light sensor. (Figure 2, Shibuya) Regarding claim 3, The smoke detector as claimed in claim 2, wherein a tilted angle of the optical axis of the lens is larger than 20 degrees and smaller than 45 degrees. (Figure 2, Shibuya) Regarding claim 4, The smoke detector as claimed in claim 1, further comprising another light directing element arranged on the peripheral surface of the lens at a side of the lens closer to the light sensor. (Figure 2, Shibuya) Regarding claim 5, The smoke detector as claimed in claim 1, wherein the ring wall surrounding the light source has a same height. (Shibuya: figure 2) Conclusion Related Art: US 11913864 B2 – smoke detector with light reflection US 20210312779 A1 – smoke detector with light reflection US 20210295667 A1 – smoke detector with light reflection US 20210166542 A1 – smoke detector with light reflection US 20200175848 A1 – smoke detector with light reflection US 20180306715 A1 – smoke detector with light reflection US 20180180540 A1 – smoke detector with light reflection US 20170287318 A1 – smoke detector with light reflection US 20160140817 A1 – smoke detector with light reflection US 20150302727 A1 – smoke detector with light reflection US 20140111803 A1 – smoke detector with light reflection US 20130033699 A1 – smoke detector with light reflection US 20120050030 A1 – smoke detector with light reflection US 20100328085 A1 – smoke detector with light reflection US 20060261967 A1 – smoke detector with light reflection US 6521907 B1 – smoke detector with light reflection US 4469953 A – smoke detector with light reflection Any inquiry concerning this communication or earlier communications from the examiner should be directed to TRAVIS R HUNNINGS whose telephone number is (571)272-3118. The examiner can normally be reached M: 6-7:30a, 9:30a-4:45p, 8:30-10p; T: 6-7:30a, 12-4p, 7:30p-12a; W: 6-7:30a, 9:30a-4:45p; H: 6-7:30a, 8:15a-4:45p; F: 12:00-4:45p. 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, Davetta Goins can be reached at 571-272-2957. 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. /TRAVIS R HUNNINGS/ Primary Examiner, Art Unit 2689
Read full office action

Prosecution Timeline

Dec 06, 2024
Application Filed
Jun 15, 2026
Non-Final Rejection mailed — §102, §112 (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
83%
Grant Probability
96%
With Interview (+13.7%)
2y 2m (~7m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1148 resolved cases by this examiner. Grant probability derived from career allowance rate.

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