Prosecution Insights
Last updated: April 19, 2026
Application No. 18/337,394

Multiplexed Light Detection and Ranging Apparatus

Non-Final OA §103
Filed
Jun 19, 2023
Examiner
RATCLIFFE, LUKE D
Art Unit
3645
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Optowaves Inc.
OA Round
1 (Non-Final)
87%
Grant Probability
Favorable
1-2
OA Rounds
2y 11m
To Grant
98%
With Interview

Examiner Intelligence

Grants 87% — above average
87%
Career Allow Rate
1476 granted / 1690 resolved
+35.3% vs TC avg
Moderate +10% lift
Without
With
+10.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
43 currently pending
Career history
1733
Total Applications
across all art units

Statute-Specific Performance

§101
2.3%
-37.7% vs TC avg
§103
50.2%
+10.2% vs TC avg
§102
26.3%
-13.7% vs TC avg
§112
13.6%
-26.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1690 resolved cases

Office Action

§103
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. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claim (s) 5 is/are rejected under 35 U.S.C. 103 as being unpatentable over Kaneda (20170350964) in view of Johnston (20060072874 ) . Referring to claim 5, Kaneda shows a multiplexed line scanning light detection and ranging (LiDAR) system for measuring a distance from the multiplexed LiDAR system to features on an object (see abstract also see paragraph 13) , comprising: a coherent light source (see figure 1 Ref 110) ; a modulating controller in communication with the coherent light source and configured for generating and controlling a control signal that is transferred to the coherent light source for modulating the coherent light source to generate a pulsed wavelength-modulated coherent light beam for creating a scan pattern for measuring a surface of the object (see figure 1 Ref 114 also see paragraph 16) ; a LiDAR module connected with the coherent light source for receiving the pulsed wavelength-modulated coherent light beam and comprising (see figure 1 Ref 150 also see the balanced detector pairs Ref 160) : an interferometer for generating a sampling pulsed wavelength-modulated coherent light beam and a reference pulsed wavelength-modulated coherent light beam (see figure 1 Ref 156) , and a balanced detector (see figure 1 Ref 160 also see the IQ detection shown in paragraph 20) one or more multiplexed line scanning apparatus for receiving the pulsed wavelength-modulated coherent light beam and transferring the pulsed wavelength-modulated coherent light beam (see the scanning discussed in paragraph 13) to a fiberoptic lens element, wherein the fiberoptic lens element is actuated with a line scan pattern such that the sample pulsed wavelength-modulated coherent light beam scans a desired light pattern ; a modulation scan controller configured for modulating the coherent light source to generate the pulsed wavelength-modulated coherent light beam and (see the modulation performed by the waveform generator and the phase shifter as well as the bias control Ref 130 and 124) configured for implementing the scan pattern for the fiberoptic lens element; a signal processor that receives an electrical signal generated by the back reflected pulsed wavelength-modulated coherent light beam at the balanced detector (see the DSP Ref 180) ; and convert the electrical signals to digitized electrical signals (inherent with a DSP) ; and a computer system configured programmed to calculate the time delay determined by the digitized electrical signal from the signal processor and generates a displayed imaging range based on the distance from the target (see paragraph 21 note the external processor or computer to display distance/velocity measurements, it is well known that range in an FMCW signal is determined by time delay) . However Kaneda fails to show a fiberoptic lens element, wherein the fiberoptic lens element is actuated with a line scan pattern such that the sample pulsed wavelength-modulated coherent light beam scans a desired light pattern; and modulation scan controller configured for implementing the scan pattern for the fiberoptic lens element . Johnston shows a similar device that includes a fiberoptic lens element, wherein the fiberoptic lens element is actuated with a line scan pattern such that the sample pulsed wavelength-modulated coherent light beam scans a desired light pattern (see figure 2 also see paragraph 15 ) ; and modulation scan controller configured for implementing the scan pattern for the fiberoptic lens element (see paragraph 15) . It would have been obvious to include the fiberoptic lens and the modulation scan controller as shown by Johnston because this allows for a compact controllable scan as taught by Johnston (see paragraph 2). Claim(s) 6 is/are rejected under 35 U.S.C. 103 as being unpatentable over Kaneda (20170350964) in view of Johnston (20060072874) and Engberg (10324170 ) . Referring to claim 6, Kaneda fails to specifically show but Engberg shows at least two lidar modules that are connected with the coherent light source via an optical splitter or an optical switch for receiving the pulsed wavelength modulated coherent light beam (see figure 6A) . It would have been obvious to include the at least two lidar modules because this allows for a larger field of view as shown by Engberg in figure 6a. Allowable Subject Matter Claims 1-4 and 15-17 are allowed. Claims 7-14 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 FILLIN "Examiner name" \* MERGEFORMAT LUKE D RATCLIFFE whose telephone number is FILLIN "Phone number" \* MERGEFORMAT (571)272-3110 . The examiner can normally be reached FILLIN "Work Schedule?" \* MERGEFORMAT M-F 9:00AM-5:00PM 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, FILLIN "SPE Name?" \* MERGEFORMAT Isam Alsomiri can be reached at FILLIN "SPE Phone?" \* MERGEFORMAT 571-272-6970 . 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. /LUKE D RATCLIFFE/ Primary Examiner, Art Unit 3645
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Prosecution Timeline

Jun 19, 2023
Application Filed
Mar 19, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

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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
98%
With Interview (+10.2%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 1690 resolved cases by this examiner. Grant probability derived from career allow rate.

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