Prosecution Insights
Last updated: April 19, 2026
Application No. 18/766,978

VISION SYSTEM FOR A MOBILE ROBOT

Non-Final OA §103
Filed
Jul 09, 2024
Examiner
DANG, HUNG Q
Art Unit
2484
Tech Center
2400 — Computer Networks
Assignee
Dyson Technology Limited
OA Round
3 (Non-Final)
68%
Grant Probability
Favorable
3-4
OA Rounds
3y 1m
To Grant
87%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allow Rate
1257 granted / 1841 resolved
+10.3% vs TC avg
Strong +18% interview lift
Without
With
+18.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
95 currently pending
Career history
1936
Total Applications
across all art units

Statute-Specific Performance

§101
4.2%
-35.8% vs TC avg
§103
54.1%
+14.1% vs TC avg
§102
23.6%
-16.4% vs TC avg
§112
11.6%
-28.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1841 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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 08/07/2025 has been entered. Terminal Disclaimer The terminal disclaimer filed on 04/21/2025 disclaiming the terminal portion of any patent granted on this application which would extend beyond the expiration date of the full statutory term of prior patent no. 12,064,068 has been reviewed and is accepted. The terminal disclaimer has been recorded. Response to Arguments Applicant's arguments filed 07/16/2025 have been fully considered but they are moot in view of a new ground of rejections. 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. Claims 1, 4, 6, 8, 10-12, and 17 are rejected under 35 U.S.C. 103 as being unpatentable over Gilad et al. (US 2007/0118018 A1 – hereinafter Gilad) and Roth et al. (US 2018/0343402 A1 – hereinafter Roth). Regarding claim 1, Gilad discloses a vision system for a mobile robot, the vision system comprising: a lens module (Fig. 3 – a lens module comprising elements 208, 208’, 208”, or a lens module comprising elements 209, 209’, 209”); an illumination system comprising a plurality of light sources (Fig. 3; [0031] – an illumination system comprising light sources 203 or light sources 23); and a lens module holder (Fig. 3; [0030] – a lens module holder 54); wherein the lens module holder is positioned around the lens module and comprises a reflective surface for reflecting light emitted from the illumination system away from the lens module ([0030] – each of lens holders 54 is coated with a reflective material so as to redirect illumination to a desired direction and away from the imager 26 or 206). However, Gilad does not disclose a fin is provided between each of the plurality of light sources, the fin being sized, shaped, and positioned to segment to the light emitted from the illumination system. Roth discloses a fin is provided between each of a plurality of light sources, a fin being sized, shaped, and positioned to segment to light emitted from an illumination system ([0086]; [0093]; Fig. 5A – a portion, e.g. each of portions 501, as a fin arranged between each segment corresponding to a light illuminator to segment the emitted light in order to prevent light leakage from one illuminator segment to another illuminator segment, each portion has a size and a shape, which are determined, i.e. sized and shaped, by designers to successfully segment to light as desired). One of ordinary skill in the art before the effective filing date of the claimed invention would have been motivated to incorporate the teachings of Roth into the vision system taught by Gilad to prevent light leakage from one illuminator segment to another illuminator segment, thus optimizing illumination condition for imaging. Regarding claim 4, Gilad also discloses the plurality of light sources are arranged in a ring around the lens module (Fig. 2; [0028]). Regarding claim 6, Gilad also discloses the reflective surface is a semi-parabolic toroid mirror (Fig. 3). Regarding claim 8, Gilad also discloses a light-transmissive cover (Fig. 3 – optical dome 21 or optical dome 201). Regarding claim 10, Gilad also discloses the lens module holder is configured to protrude above an upper surface of a body of the mobile robot when mounted to the mobile robot (Figs. 2-3 – protruding above the surface at which elements 234 is disposed, which is interpreted as an upper surface of the body of the in-vivo device). Regarding claim 11, Gilad also discloses each of the plurality of light sources are positioned below an upper surface of a body of the mobile robot when mounted to the mobile robot (Figs. 2-3 – below the surface of the optical dome, which is interpreted as an upper surface of the body of the in-vivo device). Regarding claim 12, Gilad also discloses the lens module comprises a plurality of lens for focusing light onto an image sensor (Fig. 3 – a lens module comprising lenses 208, 208’, and 208” 206 and a lens module comprising lenses 209, 209’, and 209” focuses light onto imager 26). Claim 17 is rejected for the same reason as discussed in claim 1 above in view of Gilad also disclosing the mobile robot comprising the vision system (Fig. 2; Fig. 3; [0003]-[0004] – the in-vivo device is a mobile robot). Claims 2-3, 5, 7, and 9 are rejected under 35 U.S.C. 103 as being unpatentable over Gilad and Roth as applied to claims 1, 4, 6, 8, 10-12, and 17 above, and further in view of Wang et al. (US 2016/0205318 A1 – hereinafter Wang). Regarding claim 2, see the teachings of Gilad and Roth as discussed in claim 1 above. However, Gilad and Roth do not disclose a vision system mount configured for mounting the vision system to a mobile robot, the vision system mount comprising a plurality of holes through which a corresponding light source from the plurality of light sources protrudes. Wang discloses a vision system mount configured for mounting the vision system to a body of a host device, the vision system mount comprising a plurality of holes through which a corresponding light source from a plurality of light sources protrudes (Figs. 1-2; [0020]-[0021] – a vision system comprising a vision system mount for mounting the vision system, i.e. lens and light sources, onto a body of a device 10, the vision system mount comprising holes through which a plurality of light sources protrude as shown in Figs. 1-2). One of ordinary skill in the art before the effective filing date of the claimed invention would have been motivated to incorporate the teachings of Wang into the vision system taught by Gilad and Roth to secure the vision system to the host device. Regarding claim 3, see the teachings of Gilad, Roth, and Wang as discussed in claim 2 above. Gilad, Roth, and Wang do not disclose the vision system mount comprises a heat sink that operably draws heat away from the plurality of light sources. Official Notice is taken that a mount comprises a heat sink operably draws draw heat away from heat sources is well known in the art. One of ordinary skill in the art before the effective filing date of the claimed invention would have been motivated to incorporate a mount with heat sink into the vision system taught by Gilad, Roth, and Wang to dissipate the heat generated by the light sources in order to stabilize their operation and extend their life span. Regarding claim 5, see the teachings of Gilad and Roth as discussed in claim 1 above. Gilad also discloses each of the plurality of light sources are positioned below the reflective surface of the lens holder module (Fig. 3). However, Gilad and Roth do not disclose the lens module protrudes above the lens module holder. Wang discloses a lens module protrudes above the lens module holder (Fig. 2 – lens module 20 protrudes above a lens module holder). One of ordinary skill in the art before the effective filing date of the claimed invention would have been motivated to incorporate the teachings of Wang into the vision system taught by Gilad and Roth to allow capturing of wide-angle images. Claim 7 is rejected for the same reason as discussed in claim 2 above in view of. Roth also disclosing each fin is disposed on a vision system mount ([0086] – disposed on the vision system mount shown in Fig. 4A). The motivation for incorporating the teachings of Roth has been discussed in claim 1 above. Regarding claim 9, see the teachings of Gilad and Roth as discussed in claim 8 above. However, Gilad and Roth do not disclose the light-transmissive cover covers the illumination system and defines an aperture through which a top of the lens module protrudes. Wang discloses a light-transmissive cover covers an illumination system and defines an aperture through which a top of a lens module protrudes ([0027]; Figs. 1-2 – transmissive cover 40 covers an illumination system and defines an aperture through which a top of a lens module 20 protrudes). One of ordinary skill in the art before the effective filing date of the claimed invention would have been motivated to incorporate the teachings of Wang into the vision system taught by Gilad and Roth to allow wide angle images to be captured. Claim 13 is rejected under 35 U.S.C. 103 as being unpatentable over Gilad and Roth as applied to claims 1, 4, 6, 8, 10-12, and 17 above, and further in view of Hennick et al. (US 2003/0089776 A1 – hereinafter Hennick). Regarding claim 13, see the teachings of Gilad and Roth as discussed in claim 1 above, in which Gilad also discloses there are eight light sources (Fig. 2 – there 2 x4 light sources 234). However, Gilad and Roth do not disclose each of the eight light sources is independently controllable. Hennick discloses each light source is independently controllable ([0010] - a plurality of different colored LED dies each independently drivable so that the overall color emitted by the light source can be controlled and varied). One of ordinary skill in the art before the effective filing date of the claimed invention would have been motivated to incorporate the teachings of Hennick into the vision system taught by Gilad and Roth to condition the emitted light according to application or working environment. Claim 14 is rejected under 35 U.S.C. 103 as being unpatentable over Gilad and Roth as applied to claims 1, 4, 6, 8, 10-12, and 17 above, and further in view of Basho (US 20160182783 A1 – hereinafter Basho). Regarding claim 14, see the teachings of Gilad and Roth as discussed in claim 1 above. However, Gilad and Roth do not disclose the lens module holder is disposed around the lens module to allow the lens module to extend upward through the lens module holder. Basho discloses a lens module holder is disposed around the lens module to allow the lens module to extend upward through the lens module holder (Fig. 3; [0048] – lens a lens module holder is disposed around lens 71 allowing the lens to extend upward through the lens module holder). One of ordinary skill in the art before the effective filing date of the claimed invention would have been motivated to incorporate the teachings of Basho into the vision system taught by Gilad and Roth so that the lens can be set at a desired orientation. Claims 15-16 are rejected under 35 U.S.C. 103 as being unpatentable over Gilad and Roth as applied to claims 1, 4, 6, 9, 10-12, and 17 above, and further in view of Kimura (US 20170331987 A1 – hereinafter Kimura). Regarding claim 15, see the teachings of Gilad and Roth as discussed in claim 1 above. However, Gilad and Roth do not disclose the lens module holder comprises a flange that projects radially outwards from the outside of the lens module holder. Kimura discloses a lens module holder comprises a flange that projects radially outwards from the outside of the lens module holder (Figs. 3, 5A-5B – flange 203). One of ordinary skill in the art before the effective filing date of the claimed invention would have been motivated to incorporate the teachings of Kimura into the vision system taught by Gilad and Roth to prevent the illumination light from reflecting on the cover to enter the lens unit and shields reflected light of the illumination light, thus providing images of good quality. Regarding claim 16, see the teachings of Gilad, Roth, and Kimura as discussed in claim 15 above. Kimura also discloses a reflective surface disposed on a surface underneath a flange, the reflective surface configured reflect light emitted from a illumination system away from a lens module ([0043]; Figs. 3, 5A-5B – the surface underneath flange 203 reflects light 206d). The motivation for incorporating the teachings of Kimura into the system of Gilad and Wang has been discussed in claim 15 above. Claims 17-20 are rejected under 35 U.S.C. 103 as being unpatentable over Ji et al. (US 2016/0059770 A1 – hereinafter Ji), Kimura, and Roth. Alternatively, regarding claim 17, Ji discloses a mobile robot (Figs. 3-4) comprising a vision system (Figs. 3-4; [0041]), the vision system comprising: a lens module (Figs. 3-4; [0041] – a lens module comprising a panoramic annular lens); an illumination system comprising a plurality of light sources (Figs. 4-5; [0044] – light sources 4); and a lens module holder (Figs. 4-5 – the main body of the robot); wherein the lens module holder is positioned around the lens module (Figs. 4-5 – the main body of the robot is positioned around the lens module) and comprises a surface (Fig. 4; [0043] – the bottom surface of the handle 25). However, Ji does not disclose the lens module holder comprises a reflective surface for reflecting light emitted from the illumination system away from the lens module; and wherein a fin is disposed between each of the plurality of light sources, the fin being sized, shaped, and positioned to segment the light emitted from the illumination system. Kimura discloses a lens module holder comprises a reflective surface for reflecting light emitted from an illumination system away from a lens module (Figs. 3, 5A-5B – flange 203). One of ordinary skill in the art before the effective filing date of the claimed invention would have been motivated to incorporate the teachings of Kimura into the vision system taught by Ji to prevent the illumination light from reflecting on the cover to enter the lens unit and shields reflected light of the illumination light, thus providing images of good quality. Ji and Kimura do not disclose a fin is disposed between each of the plurality of light sources, the fin being sized, shaped, and positioned to seqment the light emitted from the illumination system. Roth discloses a fin is disposed between each of the plurality of light sources, the fin being sized, shaped, and positioned to seqment the light emitted from the illumination system ([0086]; [0093]; Fig. 5A – a portion, e.g. each of portions 501, as a fin arranged between each segment corresponding to a light illuminator to segment the emitted light in order to prevent light leakage from one illuminator segment to another illuminator segment, each portion has a size and a shape, which are determined, i.e. sized and shaped, by designers to successfully segment to light as desired). One of ordinary skill in the art before the effective filing date of the claimed invention would have been motivated to incorporate the teachings of Roth into the mobile robot taught by Ji and Kimura to prevent light leakage from one illuminator segment to another illuminator segment, thus optimizing illumination condition for imaging. Regarding claim 18, Ji also discloses a cleaner head through which air can be drawn into the mobile robot (Fig. 3; [0041] – cleaner head 23). Regarding claim 19, Ji also discloses the lens module protrudes above a top surface of the mobile robot (Figs. 3-4 – the lens module of camera 24 protrudes above a top surface of the mobile robot); and the illumination system is disposed below the top surface of the mobile robot (Fig. 4 – light sources 4 are disposed below the top surface of the mobile robot). Regarding claim 20, see the teachings of Ji, Kimura, and Roth as discussed in claim 17 above. Kimura also discloses the lens module holder is disposed around the lens module, and the lens module holder comprises a reflective surface for reflecting light emitted from the illumination system away from the lens module ([0043]; Figs. 3, 5A-5B – the surface underneath flange 203 reflects light 206d); wherein the reflective surface extends above the top surface of an installation surface (Fig. 1A) and at least partially faces downward toward the plurality of light sources (Fig. 3). The motivation for incorporating the teachings of Kimura into the system of Ji and Roth has been discussed in claim 17 above. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to HUNG Q DANG whose telephone number is (571)270-1116. The examiner can normally be reached IFT. 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, Thai Q Tran can be reached on 571-272-7382. 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. /HUNG Q DANG/Primary Examiner, Art Unit 2484
Read full office action

Prosecution Timeline

Jul 09, 2024
Application Filed
Jan 14, 2025
Non-Final Rejection — §103
Apr 21, 2025
Response Filed
May 13, 2025
Final Rejection — §103
Jul 16, 2025
Response after Non-Final Action
Aug 07, 2025
Request for Continued Examination
Aug 12, 2025
Response after Non-Final Action
Jan 14, 2026
Non-Final Rejection — §103 (current)

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Prosecution Projections

3-4
Expected OA Rounds
68%
Grant Probability
87%
With Interview (+18.3%)
3y 1m
Median Time to Grant
High
PTA Risk
Based on 1841 resolved cases by this examiner. Grant probability derived from career allow rate.

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