Office Action Predictor
Last updated: April 16, 2026
Application No. 18/441,874

COMPACT CLOSED-LOOP BYPASS OPTICAL BEAM SENSING AND CORRECTION

Non-Final OA §102§103
Filed
Feb 14, 2024
Examiner
CHERRY, EUNCHA P
Art Unit
2872
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Raytheon Company
OA Round
1 (Non-Final)
88%
Grant Probability
Favorable
1-2
OA Rounds
2y 3m
To Grant
97%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allow Rate
919 granted / 1044 resolved
+20.0% vs TC avg
Moderate +9% lift
Without
With
+9.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
18 currently pending
Career history
1062
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
39.6%
-0.4% vs TC avg
§102
48.5%
+8.5% vs TC avg
§112
3.9%
-36.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1044 resolved cases

Office Action

§102 §103
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. 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. Claims 1, 3, 7, 8, 10, 14, 15 and 18 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Braunreiter et al (US 2021/0103056 A1 from IDS filed). Regarding claim 1, Braunreiter discloses an apparatus (Fig. 3) comprising: an optical device (para 54, “laser alignment module (LAM) 305”) configured to spatially separate a first optical beam (106 and 304, para 53, “302 …generates the HEL beam 106 and an auto-alignment beam 304”) and a second optical beam (108, para 54, “306 (such as a 1567 nm laser) produces the TIL beam 108”, 106, 304, 108 are spatially separated on 330 as shown in Fig. 3); a divergence controller (para 54, “variable divergence optics 310”) configured to adjust a divergence of the second optical beam (para 54, “variable divergence optics 310 can be used to alter the divergence of the TIL beam 108 in order to obtain a variable beam footprint for the TIL beam 108”); a steering controller (para 62, “fast steering mirror 364”) configured to adjust a steering direction of the second optical beam (para 62, “the beams 106, 108, and 318 as reflected by the fast steering mirror 364 are reflected by a mirror 380”); a far field sensor (para 64, “image sensor 378” is considered to be far field sensor since the claim does not clearly define far field sensor in the body of the claim configured to receive a sample (para 64, “reflected TIL energy”) of the second optical beam (108) after adjustment of the divergence (by variable divergence optics 310 from para 54) and the steering direction (by fast steering mirror 364 from para 62) of the second optical beam and generate measurements of the sample (para 64, imaging sensor 378 senses generated measurements of the sample, “imaging sensor 378 to capture images that contain reflected TIL energy“); and at least one controller (para 64, “controller 230”) configured to control the divergence controller (310) and the steering controller (364) based on the measurements of the sample (para 64, “controller 230 to perform target racking using the TIL related images and to perform boresight correction … using the TIL/BIL related images”). Regarding claim 3, the apparatus of Claim 1, wherein the steering controller comprises one of: a pair of Risley wedges and at least one motor configured to rotate at least one of the Risley wedges; or at least one steering mirror (para 62, “fast steering mirror 364”). Regarding claim 7, the apparatus of Claim 1, wherein the optical device comprises a beamsplitter (para 56, “beam splitter/combiner 332”) configured to reflect one of the first optical beam (106) or the second optical beam and transmit another of the first optical beam or the second optical beam. Regarding claim 8, Braunreiter discloses a system (Fig. 3) comprising: multiple optical sources (para 53, “high-energy laser generator 302”; para 54, “target illumination laser 306”) configured to generate multiple input optical beams (para 53, “HEL beam 106, AA beam 304”; para 54, “TIL beam 108”), the multiple input optical beams including two or more optical beams (106, 304) and an additional optical beam (108); a beam combiner (para 56, “beam splitter/combiner 330”) configured to combine the two or more optical beams (106, 304) in order to generate a combined optical beam; an optical device (para 54, “laser alignment module (LAM) 305”) configured to spatially separate the combined optical beam (106, 304) and the additional optical beam (108, para 54, “306 (such as a 1567 nm laser) produces the TIL beam 108”, 106, 304, 108 are spatially separated on 330 as shown in Fig. 3); a divergence controller (para 54, “variable divergence optics 310”) configured to adjust a divergence of the additional optical beam (para 54, “variable divergence optics 310 can be used to alter the divergence of the TIL beam 108 in order to obtain a variable beam footprint for the TIL beam 108”); a steering controller (para 62, “fast steering mirror 364”) configured to adjust a steering direction of the additional optical beam (para 62, “the beams 106, 108, and 318 as reflected by the fast steering mirror 364 are reflected by a mirror 380”); a far field sensor (para 64, “image sensor 378”) configured to receive a sample (para 64, “reflected TIL energy”) of the additional optical beam (108) after adjustment of the divergence (by variable divergence optics 310 from para 54) and the steering direction (by fast steering mirror 364 from para 62) of the additional optical beam (108) and generate measurements of the sample (para 64, imaging sensor 378 senses generated measurements of the sample, “imaging sensor 378 to capture images that contain reflected TIL energy“); and at least one controller (para 64, “controller 230”) configured to control the divergence controller (310) and the steering controller (364) based on the measurements of the sample (para 64, “controller 230 to perform target racking using the TIL related images and to perform boresight correction … using the TIL/BIL related images”). Regarding claim 10, the system of Claim 8, wherein the steering controller comprises one of: a pair of Risley wedges and at least one motor configured to rotate at least one of the Risley wedges; or at least one steering mirror (para 62, “fast steering mirror 364”). Regarding claim 14, the system of Claim 8, wherein the optical device comprises a beamsplitter (para 56, “beam splitter/combiner 332”) configured to reflect one of the combined optical beam or the additional optical beam and transmit another of the combined optical beam or the additional optical beam (see all the beams reflected off from 332 in Fig. 3). Regarding claim 15, the system of Claim 8, further comprising: one of a beamsplitter (para 59, “beam splitter/combiner 350”) or a window configured to reflect the sample (para 64, “reflected TIL energy”) of the additional optical beam (108) towards the far field sensor (378). Regarding claim 18, Braunreiter discloses a method (Fig. 3) comprising: generating multiple input optical beams (para 53, “HEL beam 106, AA beam 304”; para 54, “TIL beam 108”), the multiple input optical beams including two or more optical beams (106, 304) and an additional optical beam (108); combining (para 56, by “beam splitter/combiner 330”) the two or more optical beams in order to generate a combined optical beam (106, 304); spatially separating the combined optical beam and the additional optical beam (by an optical device shown in para 54, “laser alignment module (LAM) 305”), the beams 106, 304 and 108 are spatially separated, physically separated on 330); controlling a divergence of the additional optical beam (by a divergence controller, para 54, “variable divergence optics 310” can be used to alter the divergence of the TIL beam 108 in order to obtain a variable beam footprint for the TIL beam 108”); controlling a steering direction of the additional optical beam (by a steering controller, para 62, “fast steering mirror 364” configured to adjust a steering direction of the additional optical beam, “the beams 106, 108, and 318 as reflected by the fast steering mirror 364 are reflected by a mirror 380”); receiving a sample of the additional optical beam after controlling of the divergence and the steering direction of the additional optical beam and generating measurements of the sample (by a far field senso(para 64, “image sensor 378”) configured to receive a sample (para 64, “reflected TIL energy”) of the additional optical beam (108) after adjustment of the divergence (by variable divergence optics 310 from para 54) and the steering direction (by fast steering mirror 364 from para 62) of the additional optical beam (108) and generate measurements of the sample (para 64, imaging sensor 378 senses generated measurements of the sample, “imaging sensor 378 to capture images that contain reflected TIL energy“); and adjusting the controlling of the divergence and the controlling of the steering direction of the additional optical beam based on the measurements of the sample (by at least one controller (para 64, “controller 230”) configured to control the divergence controller (310) and the steering controller (364) based on the measurements of the sample (para 64, “controller 230 to perform target racking using the TIL related images and to perform boresight correction … using the TIL/BIL related images”). Claim Rejections - 35 USC § 103 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 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. Claims 2 and 9 are rejected under 35 U.S.C. 103 as being unpatentable over Braunreiter et al (US 2021/0103056 A1) in view of Morikazu (US 2013/0134142 A1). Braunreiter et al discloses the claimed invention as set forth above except for wherein the divergence controller comprises a pair of lenses and at least one motor configured to adjust a spacing between the lenses. Morikazu discloses the divergence controller (Fig. 2 and para 25, beam diameter adjusting means 64) comprises a pair of lenses (641, 642) and at least one motor (645b) configured to adjust a spacing between the lenses (“second lens 642 … is moved along the support base 643 by operating the pulse motor 645b”). It would have been obvious to one having ordinary skill in the art at the time of invention before the effective filing date to use the divergence controller comprises a pair of lenses and at least one motor configured to adjust a spacing between the lenses for the purpose of obtaining precise control over the output beam’s divergence, how much it spreads and better performance in real-world systems by maintaining high beam quality across adjustments. Claims 4, 11 and 19 are rejected under 35 U.S.C. 103 as being unpatentable over Braunreiter et al (US 2021/0103056 A1) in view of Marron et al (US2017/0192094 A1). Regarding claims 4 and 11, Braunreiter et al discloses the claimed invention as set forth above except for wherein the far field sensor and the at least one controller form part of a closed control loop for controlling the divergence of the second optical beam in real-time and part of a closed control loop for controlling the steering direction of the second optical beam in real-time. Marron discloses a sensor that provides an effective closed loop system in real time (para 22). It would have been obvious to one having ordinary skill in the art at the time of invention before the effective filing date to make the far field sensor to provide an effective closed loop system in real time as taught by Marron for the purpose of obtaining immediate detection and rapid response, predictive and proactive maintenance and increased operational efficiency and optimization compare to batch/periodic sensing. Regarding claim 19, in combination, the method of Claim 18, wherein the controlling of the divergence and the controlling of the steering direction of the additional optical beam are adjusted using closed control loops (Marron, para 22). Claims 5, 12 and 20 are rejected under 35 U.S.C. 103 as being unpatentable over Braunreiter et al (US 2021/0103056 A1) Regarding claims 5 and 12, Braunreiter discloses the claimed invention as set forth above except for wherein the at least one controller is further configured to receive input from an auto-alignment sensor and to use the input from the auto-alignment sensor to control at least one of the divergence of the second optical beam and the steering direction of the second optical beam. Although an auto-alignment sensor is not disclosed for an auto-alignment beam 304 in the prior art, it would have been obvious to one having ordinary skill in the art at the time of invention before the effective filing date to use the controller 230 (para 64, “controller 230 to perform target tracking”) to further configured to receive input such as from an auto-alignment sensor for the purpose of tracking/analyzing/aligning all beams disclosed in laser system 102 of Fig. 3 (para 53, “AA beam 304 can be used internally within the laser system 102 for alignment purpose”) Regarding claim 20, the method of Claim 18, further comprising the steps of receiving and using are inherently met by the disclosure of the prior art. Claims 6 and 13 are rejected under 35 U.S.C. 103 as being unpatentable over Braunreiter et al (US 2021/0103056 A1). Braunreiter further discloses a range-finding laser configured to generate a range-finding beam (para 55, “range-finding laser 316 generates … range-finding beam 318”); and a beamsplitter (para 55, “bean splitter 320”) configured to reflect one of the range-finding beam (318) or the second optical/additional output beam in order to direct the range-finding beam and the second optical/additional output beam. However, the beam is not manipulated by a common aperture. It would have been obvious to one having ordinary skill in the art at the time of invention before the effective filing date to use a common aperture from Fig. 2 and para 40 (an aperture sharing element 222) into an embodiment of Fig. 3 for the purpose of spatial filtering and beam cleaning. Claim 16 is rejected under 35 U.S.C. 103 as being unpatentable over Braunreiter et al (US 2021/0103056 A1) in view of Saha et al (US 2019/0126537 A1). Braunreiter discloses the claimed invention as set forth above except for the system of Claim 15, further comprising: a neutral density filter configured to filter the sample of the additional optical beam; and a lens configured to focus the filtered sample of the additional optical beam onto the far field sensor. Saha discloses a neutral density filter (para 38, “neutral density ND filter 32”) configured to filter the sample and a lens (object lens 44) configured to focus the filtered sample onto the far field sensor (para 55, “sensor”). It would have been obvious to one having ordinary skill in the art at the time of invention before the effective filing date to use neutral density filter (para 38, “neutral density ND filter 32”) configured to filter the sample and a lens (object lens 44) configured to focus the filtered sample onto the far field sensor (para 55, “sensor”) as taught by Saha for the purpose of providing precise and variable power/fluence control at the target without altering beam properties. Claim 17 is rejected under 35 U.S.C. 103 as being unpatentable over Braunreiter et al (US 2021/0103056 A1). Braunreiter discloses one or more beam control elements configured to adjust the combined optical beam after the combined optical beam is spatially separated from the additional optical beam (Fig. 8, see two controller 230). However, the prior art is silent on whether the additional optical beam bypasses the one or more beam control elements. It would have been obvious to one having ordinary skill in the art at the time of invention before the effective filing date to having the additional optical beam bypass the one or more beam control elements for the purpose of providing protection of sensitive/fragile control elements and improved system reliability during maintenance or upgrades. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to EUNCHA P CHERRY whose telephone number is (571)272-2310. The examiner can normally be reached M to F 7am to 3:30pm. 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, Pinping Sun can be reached at (571) 270-1284. 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. 1/10/2026 /EUNCHA P CHERRY/Primary Examiner, Art Unit 2872
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Prosecution Timeline

Feb 14, 2024
Application Filed
Jan 10, 2026
Non-Final Rejection — §102, §103
Apr 06, 2026
Response Filed

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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
88%
Grant Probability
97%
With Interview (+9.1%)
2y 3m
Median Time to Grant
Low
PTA Risk
Based on 1044 resolved cases by this examiner. Grant probability derived from career allow rate.

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