Prosecution Insights
Last updated: April 19, 2026
Application No. 19/242,984

METHOD AND SYSTEM FOR DETERMINING BELT SLIPPAGE

Non-Final OA §102
Filed
Jun 19, 2025
Examiner
ROMANO, ASHLEY K
Art Unit
3652
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Ocado Innovation Limited
OA Round
2 (Non-Final)
78%
Grant Probability
Favorable
2-3
OA Rounds
2y 8m
To Grant
86%
With Interview

Examiner Intelligence

Grants 78% — above average
78%
Career Allow Rate
376 granted / 482 resolved
+26.0% vs TC avg
Moderate +8% lift
Without
With
+8.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
27 currently pending
Career history
509
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
42.5%
+2.5% vs TC avg
§102
33.0%
-7.0% vs TC avg
§112
20.2%
-19.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 482 resolved cases

Office Action

§102
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 . Claim Objections Claim 14 objected to because of the following informalities: Claim appears to contain a typo. It appears “wherein the system further comprises a an automatic tensioning device” should be “wherein the system further comprises an automatic tensioning device”. 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. Claims 1-2, 14-15 rejected under 35 U.S.C. 102(a)(1) as being anticipated by Adachi (US Pub App 2019/0128777). Regarding claim 1, Adachi discloses a system for determining slippage of a drive belt, the system comprising: a drive belt (53); first and second motors (51, 61) configured to drive the drive belt; and a controller (2) configured to: receive first and second current transients from the first and second motors, respectively, during a simultaneous activation of the first and second motors to drive the drive belt (Abstract, Para.51); and determine slippage of the drive belt if first and second current values of the first and second current transients, respectively, differ by at least a threshold at substantially a same time (Abstract, Para.50-68). Regarding claim 2, Adachi further discloses wherein the threshold is defined by: a minimum percentage difference between the first and second current values (see at least Para.50-53); and/or a minimum ampere difference between the first and second current values. Regarding claim 14, Adachi further discloses the system further comprises an automatic tensioning device (Para.50), and the controller is further configured to control the automatic tensioning device to increase a tension of the drive belt upon determining slippage of the drive belt has occurred, and/or reduce the tension of the drive belt upon determining slippage of the drive belt has not occurred (Para.57-58). Regarding claim 15, Adachi further discloses a method for determining slippage of a drive belt in a system, wherein the system comprises the system of claim 1, the method comprising using the controller to: receive first and second current transients from the first and second motors respectively (Para.57-58) during a simultaneous activation of the first and second motors to drive the drive belt (Para.23, 57-58); and determine slippage of the drive belt has occurred if first and second current values of the first and second current transients, respectively, differ by at least a threshold at substantially the same time (Para.57-58). Allowable Subject Matter Claims 3-13 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. The following is an examiner’s statement of reasons for allowance: The prior art of record fails to disclose or render obvious the claimed invention as set forth in claim 3 and subsequent dependent claims. The prior art of record does not disclose or render obvious a load-handling device for lifting and moving storage containers stacked in a grid framework structure comprising a first set of parallel rails or tracks and a second set of parallel rails or tracks extending substantially perpendicularly to the first set of rails or tracks in a substantially horizontal plane to form a grid pattern comprising a plurality of grid spaces, wherein the grid framework structure is supported by a set of uprights to form a plurality of vertical storage locations beneath the framework structure for containers to be stacked between and be guided by the uprights in a vertical direction through the plurality of grid spaces, the load-handling device comprising a body or skeleton mounted on a first set of wheels being arranged to engage with the first set of parallel tracks and a second set of wheels being arranged to engage with the second set of parallel tracks and a drive assembly comprising a first system according to claim 1, wherein the drive belt and first and second motors of the first system are configured to drive the first or second sets of wheels to move the load-handling device along the first or second set of parallel rails respectively, and wherein the controller of the first system is configured to receive the first and second current transients from the first and second motors of the first system respectively during a driving of the first or second sets of wheels and a direction-change assembly comprising a second system according to claim 1, wherein the drive belt and first and second motors of the second system are configured to raise or lower the first set of wheels, and or lower or raise the second set of wheels with respect to the body or skeleton to engage and disengage the wheels with the parallel tracks, and wherein the controller of the second system is configured to receive the first and second current transients from the first and second motors of the second system respectively during a raising or lowering of the first set of wheels, and or a lowering or raising of the second set of wheels; and a container-lifting assembly comprising a third system according to claim 1, wherein the drive belt and first and second motors of the third system are configured to raise or lower a gripping device in the vertical direction, and wherein the controller of the third system is configured to receive the first and second current transients from the first and second motors of the third system respectively during a raising or lowering of the gripping device. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” Response to Arguments Applicant’s amendments, filed 10/15/2025, do not address the claim objection(s). The claim objection(s) remain. Applicant’s arguments filed 10/15/2025 with respect to the 102 and 103 rejections of the claims have been fully considered and are persuasive. See new 102 rejection above. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ASHLEY K ROMANO whose telephone number is (571)272-9318. The examiner can normally be reached Monday - Friday. 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, Saul Rodriguez can be reached on 571-272-7097. 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). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /SAUL RODRIGUEZ/Supervisory Patent Examiner, Art Unit 3652 /ASHLEY K ROMANO/Examiner, Art Unit 3652
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Prosecution Timeline

Jun 19, 2025
Application Filed
Aug 18, 2025
Non-Final Rejection — §102
Oct 15, 2025
Response Filed
Feb 15, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12576374
GRAIN BIN MANAGEMENT DURING LOAD-IN
2y 5m to grant Granted Mar 17, 2026
Patent 12576526
ROBOTIC GRAIN WALK DOWN IN A FLAT STORAGE BULK STORE
2y 5m to grant Granted Mar 17, 2026
Patent 12570129
LOADING DOCK AUTOMATED TRAILER DOOR SYSTEMS
2y 5m to grant Granted Mar 10, 2026
Patent 12564138
GRAIN BIN MANAGEMENT DURING GRAIN STORAGE
2y 5m to grant Granted Mar 03, 2026
Patent 12552604
Multi-Function Inventory Handling Station Assembly
2y 5m to grant Granted Feb 17, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

2-3
Expected OA Rounds
78%
Grant Probability
86%
With Interview (+8.1%)
2y 8m
Median Time to Grant
Moderate
PTA Risk
Based on 482 resolved cases by this examiner. Grant probability derived from career allow rate.

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