Prosecution Insights
Last updated: October 02, 2026
Application No. 17/868,689

OPTICAL ACTIVITY DETECTING DEVICE

Non-Final OA §102
Filed
Jul 19, 2022
Priority
Nov 02, 2021 — TW 110140706
Examiner
ALSOMIRI, ISAM A
Art Unit
3600
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Lextar Electronics Corporation
OA Round
2 (Non-Final)
67%
Grant Probability
Favorable
2-3
OA Rounds
0m
Est. Remaining
90%
With Interview

Examiner Intelligence

Grants 67% — above average
67%
Career Allowance Rate
140 granted / 210 resolved
+14.7% vs TC avg
Strong +24% interview lift
Without
With
+23.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
3 currently pending
Career history
218
Total Applications
across all art units

Statute-Specific Performance

§101
1.9%
-38.1% vs TC avg
§103
46.5%
+6.5% vs TC avg
§102
33.5%
-6.5% vs TC avg
§112
10.9%
-29.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 210 resolved cases

Office Action

§102
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 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. (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) 16 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Liu et al US 2014/0152988A1. Claim 16, Liu teaches An optical activity detecting device, adapted to detect an object, comprising: a light source ([0035], claim 9) , providing a light beam; a first polarizer ([0031], claim 1), wherein the light beam travels from the light source, passes through the first polarizer, and enters the object ([0030], [0048]); a second polarizer ([0036], claim 10), wherein the phase difference between the first polarizer and the second polarizer is 90 degrees or 0 degrees ([0031, 0032], claim 2, 16); and a first detector, wherein at least a portion of the light beam travels from the object, passes through the second polarizer and is received by the first detector ([0036], claim 10). Allowable Subject Matter Claims 1-15 are allowed. Claims 17-18 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ISAM ALSOMIRI whose telephone number is (571)272-6970. The examiner can normally be reached 9-5:30 M-F. 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, Joseph Thomas can be reached at 571-272-8004. 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. /ISAM A ALSOMIRI/Supervisory Patent Examiner, Art Unit 3645
Read full office action

Prosecution Timeline

Jul 19, 2022
Application Filed
Sep 16, 2025
Non-Final Rejection mailed — §102
Dec 16, 2025
Response Filed
Sep 02, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12736680
SYSTEMS AND METHODS OF ENVIRONMENTAL DETECTION FOR A VEHICLE
3y 6m to grant Granted Sep 15, 2026
Patent 12730200
LIDAR SYSTEMS WITH PLANAR MULTI-PIXEL SENSING ARRAYS
3y 11m to grant Granted Sep 08, 2026
Patent 12717036
LIGHT DETECTION DEVICE, LIGHT DETECTION SYSTEM, LIDAR DEVICE, MOBILE BODY, INSPECTION METHOD, AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE
3y 12m to grant Granted Aug 25, 2026
Patent 12687631
SIGNAL EXTRACTION CIRCUIT, SIGNAL EXTRACTION METHOD, AND DISTANCE MEASUREMENT METHOD AND DEVICE
4y 2m to grant Granted Jul 21, 2026
Patent 12663518
Hyper Temporal Lidar with Switching Between a Baseline Scan Mode and a Pulse Burst Mode
4y 7m to grant Granted Jun 23, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

2-3
Expected OA Rounds
67%
Grant Probability
90%
With Interview (+23.5%)
2y 10m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 210 resolved cases by this examiner. Grant probability derived from career allowance rate.

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