Prosecution Insights
Last updated: October 02, 2026
Application No. 18/526,154

RISLEY PRISM OPTICAL POINTING CONTROLLER

Final Rejection §102
Filed
Dec 01, 2023
Examiner
NGUYEN, DUNG T
Art Unit
2871
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
BAE Systems plc
OA Round
2 (Final)
82%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
83%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allowance Rate
1324 granted / 1611 resolved
+14.2% vs TC avg
Minimal +1% lift
Without
With
+0.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
28 currently pending
Career history
1628
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
43.7%
+3.7% vs TC avg
§102
32.9%
-7.1% vs TC avg
§112
11.9%
-28.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1611 resolved cases

Office Action

§102
DETAILED ACTION The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Applicant’s response dated 05/27/2026 has been received and entered. Claims 1-17 are remain pending in the application. 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 1-9 are rejected under 35 U.S.C. 102(a)(1)/102(a)(2) as being anticipated by Sanghera et al., US 2010/0271719 A1. Claim 1 is anticipated by Sanghera et al. figures 1-5 and accompanying text which discloses a Risley prism assembly (RPA) 2 comprising: . a first prism element 10 . a second prism element 20 . each of the first and second prism elements 10, 20 having an angular orientation about a common central rotation axis that is variable by causing respective first and second Risley prism assembly motors (RPA motors)(rotors 33, 37) to rotate the first and second prism elements about the central rotation axis 6 . wherein light entering the RPA along the central rotation axis and passing through both of the first and second prism elements 10, 20 is refracted away from the central rotation axis 6 at a maximum refraction angle γmax when an angular orientation difference Δθ between the angular orientation θ1 of the first prism element 10 and the angular orientation θ2 of the second prism element 20 is zero (fig. 3) and at a minimum refraction angle γmin when Δθ = 1800 (fig. 4) . a controller 30 It is noted that the functional of the controller (e.g., apply an iterative root finding method of false position (MFP), direct the first and second RPA motors to adjust the angular orientations of the first and second prism elements) recites a one-step process which does not further limit the structure of the device claims. Therefore, this limitation has not been given patentable weight. Re claim 2, wherein γmin = 0 (fig. 4). Re claims 3-6 and 8-9, those claims recite the one-step process limitation(s) of the controller functional that does not further limit the structure of the device claims and those limitation(s) have not been given patentable weight. Re claim 7, wherein the RPA is achromatic ([0022]). Allowable Subject Matter Claims 10-17 are allowed. The following is a statement of reasons for the indication of allowable subject matter: None of the prior art of record discloses or suggests alone or in combination that a non-transitory computer readable storage medium comprising a computer program product with instructions configured for processing scanning instructions for an optical assembly by causing a controller to comprising a combination of various limitations as claimed more specifically applying an iterative root finding method of false position (MFP) to approximate a value Δθd of the angular orientation difference Δθ at which the light will be refracted at a desired refraction angle γd formed between a desired pointing direction and the central rotation axis, and directing the first and second RPA motors to adjust the angular orientations of the first and second prism elements to cause the light to emerge from the RPA in the desired pointing direction when the light enters the RPA along the central rotation axis, or causing the light to emerge from the RPA along the central rotation axis when the light enters the RPA along the desired pointing direction as set forth in claim 10. Claims 11-17 are allowed by virtue of their dependency. Response to Arguments Applicant's arguments filed 05/27/2026, with respect to claim 1, have been fully considered but they are not persuasive. Applicant respectfully submits that such an assertion is contrary to the court’s rulings in Verdegaal, Net MoneyIn, and MPEP §2131. It is noted that the MPEP§2131 and Court’s ruling of Net MoneyIN, Inc. v. Verisign, Inc are about anticipation rather patentable weight matter. In addition, the controller functional/product processing recitation in the device claim(s) would not been given patentable weight because it is narrative in form. In re Fuller, 1929 C.D. 172; 388 O.G. 279; as well as, the patentability of a product does not depend on its method of production. If the product in the product-by-process claim is the same as or obvious from a product of the prior art, the claim is unpatentable even though the prior product was made by a different process.” In re Thorpe, 777 F.2d 695, 698, 227 USPQ 964, 966 (Fed. Cir. 1985). Accordingly, claims 1-7 stand rejected as stated above Conclusion THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to DUNG T NGUYEN whose telephone number is (571)272-2297. The examiner can normally be reached 8:00 - 5:00. 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, Jennifer Carruth can be reached at 571-272-9791. 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. /DUNG T NGUYEN/Primary Examiner, Art Unit 2871
Read full office action

Prosecution Timeline

Dec 01, 2023
Application Filed
Feb 27, 2026
Non-Final Rejection mailed — §102
May 27, 2026
Response Filed
Aug 25, 2026
Final Rejection mailed — §102 (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

3-4
Expected OA Rounds
82%
Grant Probability
83%
With Interview (+0.9%)
2y 6m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1611 resolved cases by this examiner. Grant probability derived from career allowance rate.

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