Prosecution Insights
Last updated: April 19, 2026
Application No. 18/625,685

LIVENESS DETECTION

Final Rejection §103§112
Filed
Apr 03, 2024
Examiner
FLYNN, RANDY A
Art Unit
2424
Tech Center
2400 — Computer Networks
Assignee
UNIVERSITY OF NOTRE DAME DU LAC
OA Round
2 (Final)
65%
Grant Probability
Favorable
3-4
OA Rounds
3y 1m
To Grant
82%
With Interview

Examiner Intelligence

Grants 65% — above average
65%
Career Allow Rate
391 granted / 602 resolved
+7.0% vs TC avg
Strong +17% interview lift
Without
With
+16.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
33 currently pending
Career history
635
Total Applications
across all art units

Statute-Specific Performance

§101
6.8%
-33.2% vs TC avg
§103
60.5%
+20.5% vs TC avg
§102
11.3%
-28.7% vs TC avg
§112
7.7%
-32.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 602 resolved cases

Office Action

§103 §112
DETAILED ACTION Notice relating to Pre-AIA or AIA Status 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 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 present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Response to Arguments Applicant’s arguments with respect to the claims have been considered but are moot because the arguments do not apply to the new reference(s) and/or citations being used in the current rejection. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 3-4 and 11-12 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claims 3-4 and 11-12 all recite the limitation "the one or more biometrics". There is insufficient antecedent basis for this limitation in the claims as the claim(s) from which they depend have been amended to recite “two or more biometrics”. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claims 1-6 and 9-14 are rejected under 35 U.S.C. 103 as being unpatentable over Jeanne et al., US 2019/0209052 in view of HE, US 2022/0052855. Regarding claim 1, Jeanne discloses a computer-implemented method for detecting liveness of a subject from a media stream, the computer-implemented method comprising: capturing a media stream of the subject, the media stream including a sequence of frames (receiving/capturing a sequence of video frames, i.e. media stream; page 2, paragraph 21); processing each frame of the media stream to track biometrics of the subject (based on the receive and processed frames, can identify a face area and extract/track biometric related data; page 2, paragraphs 21, 24, and 29); and determining whether the subject in the media stream is live based on the one or more biometrics detected in the media steam (can determine if person is a living person, i.e. real/live; page 2, paragraph 22, and page 3, paragraph 50). Jeanne does not explicitly disclose processing with two or more biometrics of a subject, including a combination of physiological and non-physiological characteristics. In a related art, HE does disclose processing with two or more biometrics of a subject, including a combination of physiological and non-physiological characteristics (identified biometric information can include a combination of multiple types of biometric information, wherein the types can include physiologic biometrics such as fingerprints, iris, and face, and non-physiological/behavioral biometrics such as voice and gait information; page 3, paragraph 40, and wherein this information can be based on captured multi-frame images and/or video; page 3, paragraph 41). Therefore, it would have been obvious to one of ordinary skill in the art, before the effective filing date of the claimed invention, to combine the prior art of Jeanne and HE by allowing different combinations and types of biometric data to be utilized with the already present biometric data of Jeanne, in order to provide an improved system and method for liveness detection which focuses on biometric information itself, to ensure a user is a real alive user (HE; page 5, paragraph 81). Regarding claim 2, Jeanne in view of HE discloses the media stream includes one or more of a visible-light video stream, a near-infrared video stream, a longwave-infrared video stream, a thermal video stream, and an audio stream of the subject (Jeanne; receiving a sequence of video frames, i.e. media stream; page 2, paragraph 21, and wherein can include streams with lighting, such as controlled lighting or active/ambient light, i.e. visible-light and infrared; page 4, paragraphs 79 and 81 and 88-89). Regarding claim 3, Jeanne in view of HE discloses the one or more biometrics includes two or more of pulse rate, eye gaze, eye blink rate, pupil diameter, face temperature, speech, respiration rate, and micro-expressions (Jeanne; with at least heart pulse; page 6, paragraph 114, and respiration rate and heart-beat; page 2, paragraph 32, and page 4, paragraph 84, and wherein any vital sign(s) can be used; page 4, paragraph 84). Regarding claim 4, Jeanne in view of HE discloses the one or more biometrics includes pulse rate and respiration rate (Jeanne; with at least heart pulse; page 6, paragraph 114, and respiration rate and heart-beat; page 2, paragraph 32, and page 4, paragraph 84, and wherein any vital sign(s) can be used; page 4, paragraph 84). Regarding claim 5, Jeanne in view of HE discloses cropping each frame of the media stream to encapsulate a region of interest that includes one or more of a face, facial cheek, forehead, eye, eye pupil, chest or hand (Jeanne; region can be recognized, i.e. cropped to include the face area of a user; page 3, paragraphs 50 and 54, and page 5, paragraphs 94-95, and with a cropped, i.e. boxed, frame area, of a face; Fig. 5). Regarding claim 6, Jeanne in view of HE discloses the region of interest includes two or more body parts (Jeanne; face region can include at least eyes, mouth, nose, i.e. two or more body parts; page 5, paragraphs 94-95, and Figs. 4 and 5). Claim 9, which discloses a system, is analyzed with respect to the citations and/or rationale provided in the rejection of similar claim 1. The following additional limitations are also disclosed: a processor (Jeanne; with at least a processor; page 2, paragraph 20, and page 4, paragraph 90, and page 7, paragraph 153); and a memory storing one or more programs for execution by the processor, the one or more programs including instructions (Jeanne; medium containing a computer readable program that when executed causes the computer to perform operations; page 2, paragraph 35, and page 7, paragraph 153, and including at least a specific memory; page 4, paragraph 90). Claim 10, which discloses a system, is analyzed with respect to the citations and/or rationale provided in the rejection of similar claim 2. Claim 11, which discloses a system, is analyzed with respect to the citations and/or rationale provided in the rejection of similar claim 3. Claim 12, which discloses a system, is analyzed with respect to the citations and/or rationale provided in the rejection of similar claim 4. Claim 13, which discloses a system, is analyzed with respect to the citations and/or rationale provided in the rejection of similar claim 5. Claim 14, which discloses a system, is analyzed with respect to the citations and/or rationale provided in the rejection of similar claim 6. Claims 7-8 and 15-16 are rejected under 35 U.S.C. 103 as being unpatentable over Jeanne et al., US 2019/0209052 in view of HE, US 2022/0052855 and further in view of Kirenko, US 2015/0223700. Regarding claim 7, Jeanne in view of HE discloses all the claimed limitations of claim 1, as well as video and different types of light streams (Jeanne; receiving a sequence of video frames, i.e. media stream; page 2, paragraph 21, and wherein can include streams with lighting, such as controlled lighting or active/ambient light, i.e. visible-light and infrared; page 4, paragraphs 79 and 81 and 88-89). Jeanne in view of HE does not explicitly disclose combining at least two of a visible-light stream, a near-infrared stream, and a thermal stream into a fused stream. In a related art, Kirenko does disclose combining at least two of a visible-light stream, a near-infrared stream, and a thermal stream into a fused stream (system can utilize and combine transmitted channels/streams, which can include at least red, i.e. visible light, and IR, i.e. infrared; page 3, paragraph 37, and page 5, paragraph 71). Therefore, it would have been obvious to one of ordinary skill in the art, before the effective filing date of the claimed invention, to combine the prior art of Jeanne, HE, and Kirenko by allowing the processing of Kirenko to be utilized with the already present streams/signals of Jeanne in view of HE, in order to provide an improved system and method for determining vital signs of a subject having an increased signal-to-noise ratio and efficiency in reduction of artefacts caused by distortions, in particular by motion of the subject or disturbance from ambient light (Kirenko; page 2, paragraph 14). Regarding claim 8, Jeanne in view of HE and Kirenko discloses the visible-light video stream, the near-infrared video stream, and/or the thermal video stream are combined according to a synchronization device (Kirenko; can be combined with synchronization being performed; page 3, paragraphs 32 and 36, and page 5, paragraphs 63, 67, and 69, and Jeanne; receiving a sequence of video frames, i.e. media stream; page 2, paragraph 21, and wherein can include streams with lighting, such as controlled lighting or active/ambient light, i.e. visible-light and infrared; page 4, paragraphs 79 and 81 and 88-89). Claim 15, which discloses a system, is analyzed with respect to the citations and/or rationale provided in the rejection of similar claim 7. Claim 16, which discloses a system, is analyzed with respect to the citations and/or rationale provided in the rejection of similar claim 8. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Ionita (US 2018/0046853), describing use of various forms of biometric data for liveness detection. Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). 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 RANDY A FLYNN whose telephone number is (571)270-5680. The examiner can normally be reached Monday - Thursday, 6:00am - 3:00pm ET. 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, BENJAMIN BRUCKART can be reached at 571-272-3982. 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. /RANDY A FLYNN/Primary Examiner, Art Unit 2424
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Prosecution Timeline

Apr 03, 2024
Application Filed
May 02, 2025
Non-Final Rejection — §103, §112
Oct 07, 2025
Response Filed
Nov 14, 2025
Final Rejection — §103, §112 (current)

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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
65%
Grant Probability
82%
With Interview (+16.6%)
3y 1m
Median Time to Grant
Moderate
PTA Risk
Based on 602 resolved cases by this examiner. Grant probability derived from career allow rate.

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