Prosecution Insights
Last updated: April 19, 2026
Application No. 18/754,745

INTELLIGENT CLEANING DEVICE

Non-Final OA §102
Filed
Jun 26, 2024
Examiner
LUO, DAVID S
Art Unit
2846
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
BEIJING ROBOROCK INNOVATION TECHNOLOGY CO., LTD.
OA Round
1 (Non-Final)
90%
Grant Probability
Favorable
1-2
OA Rounds
2y 3m
To Grant
97%
With Interview

Examiner Intelligence

Grants 90% — above average
90%
Career Allow Rate
1007 granted / 1115 resolved
+22.3% vs TC avg
Moderate +6% lift
Without
With
+6.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
27 currently pending
Career history
1142
Total Applications
across all art units

Statute-Specific Performance

§101
1.6%
-38.4% vs TC avg
§103
46.4%
+6.4% vs TC avg
§102
48.7%
+8.7% vs TC avg
§112
2.8%
-37.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1115 resolved cases

Office Action

§102
DETAILED ACTION 1. The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . 2. The specification, the abstract and the drawings are all acceptable. Claim Rejections - 35 USC § 102 3. 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. 4. Claims 1-16 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by USPN 6,956,348 to Landry. As to claim 1, Landry teaches an intelligent cleaning device(col. 2: lines 49 – col. 3: lines 41), comprising: a device body(fig. 1: “102”); driving wheel assemblies mounted to the device body and configured to propel the intelligent cleaning device(col. 5: lines 39-57); a control circuit (figs 1 & 2: “135”) configured to control operation of the intelligent cleaning device and disposed in the device body(col. 7: lines 7-36); and a transfer circuit disposed in the device body, wherein the driving wheel assemblies are electrically connected to the control circuit through the transfer circuit, wherein the transfer circuit comprises an electrical connector, and wherein the driving wheel assemblies are detachably connected to the control circuit through the electrical connector(col. 5: lines 32-57 & col. 7: lines 7-36 wherein apparatus and method are taught for a driving wheel switch/control circuit & system). As to claim 2, Landry teaches the intelligent cleaning device according to claim 1, wherein the transfer circuit further comprises a transfer circuit board, the electrical connector is at least partially disposed on the transfer circuit board, and the transfer circuit board is disposed in the device body(figs. 1 & 2 wherein the microprocessor “135”, sensors and transfer circuit board, wires, connectors, etc. are mounted on the chassis of the device body). As to claim 3, Landry teaches the intelligent cleaning device according to claim 1, wherein the device body comprises a chassis, the chassis is provided with an opening, and electrical connector is disposed in the opening(figs. 1 & 2 wherein the microprocessor “135”, sensors and transfer circuit board, wires, connectors, etc. are mounted on the chassis of the device body). As to claim 4, Landry teaches the intelligent cleaning device according to claim 3, wherein an electrical connection wire, connecting each of the driving wheel assemblies (col. 5: lines 39-45) and the electrical connector, is disposed below the chassis(figs. 1 & 2 wherein the microprocessor “135”, sensors and transfer circuit board, wires, connectors, etc. are mounted on the chassis of the device body). As to claim 5, Landry teaches the intelligent cleaning device according to claim 4, wherein a bottom of the chassis is provided with a receptacle, the receptacle extends from each of the driving wheel assemblies to the opening(col. 10: lines 59-63, and the electrical connection wire is confined in the receptacle(figs. 1 & 2 wherein the microprocessor “135”, sensors and transfer circuit board, wires, connectors, etc. are mounted on the chassis of the device body). As to claim 6, Landry teaches the intelligent cleaning device according to claim 5, wherein the receptacle is further provided with a stopper portion(col. 10: lines 63-67), and the stopper portion has a through-hole through which the electrical connection wire passes(figs. 1 & 2 wherein the microprocessor “135”, sensors and transfer circuit board, wires, connectors, etc. are mounted on the chassis of the device body). As to claim 7, Landry teaches the intelligent cleaning device according to claim 1, wherein the device body comprises a chassis, and the transfer circuit board exposes when the chassis is removed(figs. 1 & 2 wherein the microprocessor “135”, sensors and transfer circuit board, wires, connectors, etc. are mounted on the chassis of the device body). As to claim 8, Landry teaches the intelligent cleaning device according to claim 1, wherein each of the driving wheel assemblies comprises a driving wheel and a motor that drives the driving wheel(col. 5: lines 39-45), and the motor is electrically connected to the transfer circuit through the electrical connector(figs. 1 & 2 wherein the microprocessor “135”, sensors and transfer circuit board, wires, connectors, etc. are mounted on the chassis of the device body). As to claim 9, Landry teaches the intelligent cleaning device according to claim 8, wherein a plurality of the electrical connector is provided, and the motor of each of the driving wheel assemblies (col. 5: lines 39-45) corresponds to a respective one of the electrical connectors(figs. 1 & 2 wherein the microprocessor “135”, sensors and transfer circuit board, wires, connectors, etc. are mounted on the chassis of the device body). As to claim 10, Landry teaches the intelligent cleaning device according to claim 1, further comprising a cleaning assembly, wherein the cleaning assembly is mounted to a bottom of the device body, the cleaning assembly is provided with a plate, each of the driving wheel assemblies(col. 5: lines 39-45) comprises a driving wheel assembly housing, and the plate is snap-fitted onto a bottom of the driving wheel assembly housing to support the driving wheel assembly(figs. 1 & 2 wherein the microprocessor “135”, sensors and transfer circuit board, wires, connectors, etc. are mounted on the chassis of the device body). As to claim 11, Landry teaches the intelligent cleaning device according to claim 10, wherein the plate comprises a plate body and a plate snap-fitting portion extending from the plate body, the plate body is mounted to the device body, and the driving wheel assembly (col. 5: lines 39-45) housing is provided with a plate-receiving groove for receiving the plate snap-fitting portion(figs. 1 & 2 wherein the microprocessor “135”, sensors and transfer circuit board, wires, connectors, etc. are mounted on the chassis of the device body). As to claim 12, Landry teaches the intelligent cleaning device according to claim 1, wherein the control circuit is supported on a main circuit board, a driven wheel and a rechargeable battery are disposed below the main circuit board, and the driven wheel (col. 5: lines 39-45) and the rechargeable battery are mounted to the device body(figs. 1 & 2 wherein the microprocessor “135”, sensors and transfer circuit board, wires, connectors, etc. are mounted on the chassis of the device body). As to claim 13, Landry teaches the intelligent cleaning device according to claim 2, wherein the device body comprises a chassis, the chassis is provided with an opening, and the electrical connector is disposed in the opening(figs. 1 & 2 wherein the microprocessor “135”, sensors and transfer circuit board, wires, connectors, etc. are mounted on the chassis of the device body). As to claim 14, Landry teaches the intelligent cleaning device according to claim 13, wherein an electrical connection wire, connecting each of the driving wheel assemblies and the electrical connector, is disposed below the chassis(figs. 1 & 2 wherein the microprocessor “135”, sensors and transfer circuit board, wires, connectors, etc. are mounted on the chassis of the device body). As to claim 15, Landry teaches the intelligent cleaning device according to claim 14, wherein a bottom of the chassis is provided with a receptacle, the receptacle extends from each of the driving wheel assemblies (col. 5: lines 39-45) to the opening, and the electrical connection wire is confined in the receptacle(figs. 1 & 2 wherein the microprocessor “135”, sensors and transfer circuit board, wires, connectors, etc. are mounted on the chassis of the device body). As to claim 16, Landry teaches the intelligent cleaning device according to claim 15, wherein the receptacle is further provided with a stopper portion(col. 10: lines 63-67), and the stopper portion has a through-hole through which the electrical connection wire passes(figs. 1 & 2 wherein the microprocessor “135”, sensors and transfer circuit board, wires, connectors, etc. are mounted on the chassis of the device body). Conclusion 5. The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. USPN 10,285,557 to Park discloses a cleaning robot system. 6. Any inquiry concerning this communication or earlier communications from the examiner should be directed to DAVID S LUO whose telephone number is (571)270-5251. The examiner can normally be reached 8AM-5PM. 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, Eduardo Colon-Santana can be reached at 571-272-2060. 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. /DAVID LUO/Primary Examiner, Art Unit 2846
Read full office action

Prosecution Timeline

Jun 26, 2024
Application Filed
Feb 26, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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CONTROL CIRCUIT AND METHOD FOR DC MOTORS
2y 5m to grant Granted Apr 14, 2026
Patent 12603589
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2y 5m to grant Granted Apr 14, 2026
Patent 12597877
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2y 5m to grant Granted Apr 07, 2026
Patent 12597876
POWER CONVERTER
2y 5m to grant Granted Apr 07, 2026
Patent 12597873
EXCITATION WAVEFORM DETERMINATION DEVICE, MOTOR DRIVE DEVICE, EXCITATION WAVEFORM DETERMINATION METHOD, MOTOR DRIVE METHOD, AND PROGRAM
2y 5m to grant Granted Apr 07, 2026
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
90%
Grant Probability
97%
With Interview (+6.5%)
2y 3m
Median Time to Grant
Low
PTA Risk
Based on 1115 resolved cases by this examiner. Grant probability derived from career allow rate.

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