Prosecution Insights
Last updated: April 19, 2026
Application No. 18/872,190

DEVICE LOCALIZATION AND NAVIGATION USING RF SENSING

Non-Final OA §102
Filed
Dec 05, 2024
Examiner
LANG, MICHAEL DEAN
Art Unit
3667
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
The Regents of the University of California
OA Round
1 (Non-Final)
87%
Grant Probability
Favorable
1-2
OA Rounds
2y 5m
To Grant
93%
With Interview

Examiner Intelligence

Grants 87% — above average
87%
Career Allow Rate
654 granted / 752 resolved
+35.0% vs TC avg
Moderate +6% lift
Without
With
+5.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
12 currently pending
Career history
764
Total Applications
across all art units

Statute-Specific Performance

§101
6.0%
-34.0% vs TC avg
§103
29.2%
-10.8% vs TC avg
§102
51.4%
+11.4% vs TC avg
§112
7.0%
-33.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 752 resolved cases

Office Action

§102
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 . 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. Claim Objections Claim 12 is objected to because of the following informalities: “intertial measurement unit” is claimed. For examination purposes examiner will interpret as “inertial measurement unit”. Appropriate correction is required. Claim Rejections - 35 USC § 102 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. Claim(s) 1-4, 8-13, and 19 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Hoofard et al. (US2019/0064835). Regarding claim 1: Hoofard discloses a robot or other device capable of movement, comprising a local position module and/or an RF communication module to conduct one or more of navigation, positioning, exploration, tracking, and mapping, the RF communication module being configured to communicate with RF anchor points and the local position module configured to provide relative odometry (Paragraph 0052-0056). Regarding claim 2: Hoofard discloses wherein the RF communication module is configured to process one or more of coarse-grained RF signal strength (RSSI), and/or fine-grained RF channel state information (CSI), and/or other MAC-layer information in communication with the RF anchor points for the one or more of navigation, positioning, exploration, tracking, and mapping (Paragraph 0052-0053). Regarding claim 3: Hoofard discloses wherein: the RF communication module comprises a transceiver configured to communicate with fixed location RF anchor points (Paragraph 0052-0056); the local position module comprises a relative odometry unit (Paragraph 0052-0056); and the robot or other device further comprises, a localization and navigation system that conducts bearing measurements and/or distance measurements and/or velocity measurements between the robot and one or more of the RF anchor points and integrates these measurements with odometry measurements to navigate an environment (Paragraph 0052-0056). Regarding claim 4: Hoofard discloses wherein the localization and navigation system conducts mapping of an environment of the RF anchor points from the bearing, distance, velocity measurements using the RF measurements and the odometry measurements (Paragraph 0052-0055). Regarding claim 8: Hoofard discloses wherein the bearing measurements are conducted over multiple robot poses across time steps to conduct initial mapping of the anchor points (Paragraph 0056). Regarding claim 9: Hoofard discloses wherein the localization and navigation system ignores anchor point height in conducting the bearing measurements (Paragraph 0056, wherein the system is determining orientation (bearing) in 2D X-Y positional coordinates therefore height Y is being ignored). Regarding claim 10: Hoofard discloses wherein the bearing measurements are conducted by ping and pong packet exchanges between the robot and the anchor points and time stamping packet exchanges; processing the anchor points as an antenna array to conduct simultaneous localization and mapping of anchor points in the environment (Paragraph 0052-0053). Regarding claim 11: Hoofard discloses wherein the anchor points comprise RF access points (Paragraph 0052-0053). Regarding claim 12: As best understood, Hoofard discloses wherein the relative odometry unit comprises Lidar (light detection and ranging), a camera, wheel odometry, inertial measurement unit, accelerometer, and/or gyroscope (Paragraph 0056-0057, Lidar and wheel odometer). Regarding claim 13: Hoofard discloses wherein the localization and navigation system comprises a sensor fusion unit that integrates measurements from the Lidar and camera with the bearing, range, and/or velocity measurements (Paragraph 0056). Regarding claim 19: Hoofard discloses a method for controlling a robot or other device capable of movement, the method comprising: obtaining RF measurements from anchor points; obtaining calibration for RF measurements; obtaining local position information; and using the RF measurements and local position information to conduct one or more of navigation, positioning, exploration, tracking, and mapping (Paragraph 0052-0056). Allowable Subject Matter Claims 5-7 and 14-18 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Michael D Lang whose telephone number is (571)270-3213. The examiner can normally be reached Monday-Thursday 9am-11am and 2pm-6pm. 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, Hitesh Patel can be reached at 571-270-5442. 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. /MICHAEL D LANG/Primary Examiner, Art Unit 3667
Read full office action

Prosecution Timeline

Dec 05, 2024
Application Filed
Mar 24, 2026
Non-Final Rejection — §102 (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

1-2
Expected OA Rounds
87%
Grant Probability
93%
With Interview (+5.6%)
2y 5m
Median Time to Grant
Low
PTA Risk
Based on 752 resolved cases by this examiner. Grant probability derived from career allow rate.

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