Prosecution Insights
Last updated: September 17, 2026
Application No. 19/052,997

Joint metasurface optics/image processing co-design for ultra-thin computational sensors and imagers

Non-Final OA §103
Filed
Feb 13, 2025
Priority
Feb 13, 2024 — provisional 63/553,021
Examiner
HANNETT, JAMES M
Art Unit
Tech Center
Assignee
The Broad Of Trustees Of The Leland Stanford Junior University
OA Round
1 (Non-Final)
84%
Grant Probability
Favorable
1-2
OA Rounds
8m
Est. Remaining
85%
With Interview

Examiner Intelligence

Grants 84% — above average
84%
Career Allowance Rate
924 granted / 1096 resolved
+24.3% vs TC avg
Minimal +0% lift
Without
With
+0.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
16 currently pending
Career history
1109
Total Applications
across all art units

Statute-Specific Performance

§101
4.5%
-35.5% vs TC avg
§103
42.4%
+2.4% vs TC avg
§102
42.6%
+2.6% vs TC avg
§112
4.0%
-36.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1096 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 . Information Disclosure Statement The information disclosure statement (IDS) submitted on 2/13/2025 was filed in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. 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. 1: Claim(s) 1-12 is/are rejected under 35 U.S.C. 103 as being unpatentable over USPN 12,072,508 B2 Lundeen et al in view of US 2023/0292016 A1 Zhu et al. 2: As for Claim 1, Lundeen et al depicts in Figures 2C, 3A-3F and 8B Apparatus comprising: a nonlocal optical metasurface (Figure 3F); an image sensor array including a 2D array of imaging elements (see Figure 2C); and a digital imaging processor (not depicted but inherent for the capturing and displaying of the image from the camera) configured to receive data from the image sensor array; wherein the nonlocal optical meta surface is configured to receive incident light from a scene being viewed (see Figure 2C), and wherein the nonlocal optical meta surface is configured to provide transmitted light to the image sensor array (image sensor); wherein the nonlocal optical meta surface is configured to provide a lateral translation (W) of the transmitted light relative to the incident light (Column 16, Line 64- Column 17, Line 44 and depicts in Figures 1, 3F and 12); wherein the lateral translation (W depicted in Figure 1)) is configured to enable a reduced propagation distance between the nonlocal optical meta surface and the image sensor array (See Figure 8B and teaches in Column 22, Liens 36-67); Lundeen et al teaches a digital camera with a metalens that performs a lateral translation and discussed performing processing algorithms. However, does not teach wherein the digital image processor is configured to compensate for imaging artifacts due to the reduced propagation distance and/or the lateral translation. Zhu et al teaches in Paragraphs [0008 and 0052] an imaging system with a metalens and teaches that it is advantageous to perform image processing on the captured image to compensate for distortion caused by the metalens including distortion related to a point spread function in order to improve image quality. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to perform the image processing of Zhu et al to correct for metalens distortion in the camera system of Lundeen et al in order to improve image quality. 3: As for Claim 2, Lundeen et al teaches on Column 16, Lines 1-51 and Column 17, Lines 45-Column 18, Line 3 wherein the lateral translation (W depicted in Figure 1) depends on one or more optical parameters selected from the group consisting of: frequency, polarization and angle of incidence. 4: As for Claim 3, Lundeen et al teaches on Column 12, Lines 40-58 and Column 26, Lines 40-55 wherein the reduced propagation distance is 10% or less of a corresponding conventional propagation distance (different compression factors can be set). 5: As for Claim 4, Lundeen et al in view of Zhu et al as taught in Claim 1 teaches a processor for storing values related to a metalens and correcting for lens distortion, aberrations and PSF in order to improve image quality. Therefore, the combination teaches wherein the nonlocal metasurface is designed to provide a metasurface design, and wherein the image processor is designed using the metasurface design as a fixed input. 6: As for Claim 5, Lundeen et al in view of Zhu et al as taught in Claim 1 teaches a processor for storing values related to a metalens and correcting for lens distortion, aberrations and PSF in order to improve image quality. Therefore, the combination teaches wherein the nonlocal metasurface and the image processor are jointly designed. 7: As for Claim 6, Lundeen et al depicts in Figure 2C wherein the apparatus is configured as an imager (camera with image sensor). 8: As for Claim 7, Zhu et al further teaches in Paragraphs [0008 and 0052] wherein the image processor is configured to optimize an imaging figure of merit (PSF of image). 9: As for Claim 8, Zhu et al further teaches in Paragraphs [0008 and 0052] wherein the imaging figure of merit is selected from the group consisting of: mean- squared error, peak signal to noise, point spread function, and any combination thereof. 10: As for Claim 9, Lundeen et al depicts in Figure 2C wherein the apparatus is configured as a sensor (camera with image sensor). 11: As for Claim 10, Zhu et al further teaches in Paragraphs [0008 and 0052] wherein the image processor configured to optimize a sensor figure of merit (PSF). 12: As for Claim 11, Lundeen et al teaches on Column 30, Lines 48-67 wherein the apparatus is configured as an image recognizer (the captured image is formed and recognized as an image in the image sensor). 13: As for Claim 12, Zhu et al further teaches in Paragraphs [0008 and 0052] wherein the image processor is configured to optimize an image recognition figure of merit (PSF). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. US 2025/0147305 A1 Sofronov et al see Figure 4 and Paragraph [0024]. Any inquiry concerning this communication or earlier communications from the examiner should be directed to JAMES M HANNETT whose telephone number is (571)272-7309. The examiner can normally be reached 8:00 AM-5:00 PM Monday thru Thursday. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Twyler Haskins can be reached at 571-272-7406 The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). /JAMES M HANNETT/Primary Examiner, Art Unit 2639 JMH September 3, 2026
Read full office action

Prosecution Timeline

Feb 13, 2025
Application Filed
Sep 08, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12739515
METHOD, APPARATUS AND PROGRAM FOR PROCESSING AN IMAGE
2y 1m to grant Granted Sep 15, 2026
Patent 12732710
IMAGE SIGNAL PROCESSOR AND METHOD FOR PROCESSING IMAGE SIGNAL
3y 1m to grant Granted Sep 08, 2026
Patent 12726725
CAMERAS FOR MULTIPLE VIEWS
3y 1m to grant Granted Sep 01, 2026
Patent 12717216
IMAGING METHOD, LEARNING METHOD, LEARNING DATA GENERATING DEVICE, AND DATA STRUCTURE
1y 7m to grant Granted Aug 25, 2026
Patent 12711360
LEARNING DEVICE, LEARNING METHOD, AND LEARNING PROGRAM
2y 10m to grant Granted Aug 18, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
84%
Grant Probability
85%
With Interview (+0.5%)
2y 3m (~8m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1096 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month