Prosecution Insights
Last updated: April 19, 2026
Application No. 18/847,321

CONTROL OF A ROBOTIC VACUUM CLEANER BASED ON DUST DISTRIBUTION DATA

Non-Final OA §101§102§103
Filed
Sep 16, 2024
Examiner
GORDON, MATHEW FRANKLIN
Art Unit
3665
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Dyson Technology Limited
OA Round
1 (Non-Final)
72%
Grant Probability
Favorable
1-2
OA Rounds
2y 3m
To Grant
85%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allow Rate
199 granted / 278 resolved
+19.6% vs TC avg
Moderate +13% lift
Without
With
+13.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
14 currently pending
Career history
292
Total Applications
across all art units

Statute-Specific Performance

§101
3.2%
-36.8% vs TC avg
§103
57.1%
+17.1% vs TC avg
§102
25.0%
-15.0% vs TC avg
§112
14.1%
-25.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 278 resolved cases

Office Action

§101 §102 §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 . Claim Status This action is in response to the application filed on 09/16/2024. Claims 1-15 are pending and examined below. Claim Rejections - 35 USC § 101 35 U.S.C. 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. Claims 1-15 are rejected under 35 U.S.C. 101 because the claimed invention is directed to non-statutory subject matter. The claim(s) does/do not fall within at least one of the four categories of patent eligible subject matter because the claimed invention is directed to an abstract idea without significantly more. The claim(s) recite(s) receiving dust distribution data indicating the spatial distribution of dust particles across the floor of a building; and planning a cleaning operation of the floor of the building to be executed by the robotic vacuum cleaner, based on the received dust distribution data. This judicial exception is not integrated into a practical application because the claims may be performed on paper or in the human mind as a planning process There does not appear to be any actual action taken as a result. 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 1-3, 5-6, 9-10, 12-14 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by US 20210278239 A1 (“Takayanagi”). Regarding claim 1, Takayanagi teaches receiving dust distribution data indicating the spatial distribution of dust particles across the a floor of a building (see at least [0038]) ; and planning a cleaning operation of the floor of the building to be executed by the robotic vacuum cleaner, based on the received dust distribution data (see at least Fig. 8 and [0096]). Regarding claim 2, Takayanagi teaches the floor of the building is divided into a plurality of zones or grid elements, and planning a cleaning operation comprises generating data specifying which zones or grid elements are to be traversed by the robotic vacuum cleaner, based on the received dust distribution data (see at least [0089]). Regarding claim 3, Takayanagi teaches planning the cleaning operation comprises determining an order in which the zones or grid elements are traversed by the robotic vacuum cleaner, the order of zones or grid elements being determined based on the received dust distribution data (see at least [0092]). Regarding claim 5, Takayanagi teaches planning the cleaning operation comprises generating one or more operating parameters, the one or more operating parameters being generated based on the dust distribution data (see at least [0085]). Regarding claim 6, Takayanagi teaches generating the one or more operating parameters comprises: for each of a plurality of locations, zones, or grid elements on the floor of the building, generating a respective value of the one or more operating parameters; and the value of the operating parameter for each of the plurality of locations, zones or grid elements on the floor of the building is generated based on the dust distribution data associated with the respective location (see at least [0058]). Regarding claim 9, Takayanagi teaches the one or more parameters comprise cleaning speed; and the cleaning speed is selected to be lower in a location, zone or grid element with a relatively higher amount of dust then than in a location, zone or grid element with a relative lower amount of dust, according to the received dust distribution data (see at least [0080]). Regarding claim 10, Takayanagi teaches planning a cleaning operation comprises generating a cleaning plan comprising instructions which, when executed by a processor of the robotic vacuum cleaner, cause the robotic vacuum cleaner to execute a cleaning operation defined by the cleaning plan, the cleaning plan comprising an ordered list of locations, zones or grid elements within the floor of the building, and for each location, zone or grid element, one or more operating parameters to be used at that location, zone or grid element (see at least Fig. 8 and [0096]). Regarding claim 12, Takayanagi teaches A robotic vacuum cleaner system comprising a processor configured to perform the computer-implemented method (see at least 0146]). Regarding claim 13, Takayanagi teaches receiving, by the client device, a dust distribution map indicating the distribution of dust particles on the floor of a building (see at least [0051]); displaying the dust distribution map on a display component of the client device (see at least Fig. 8); receiving a user input corresponding to selected locations of the dust distribution map, the selected locations being locations to be cleaned by the robotic vacuum cleaner; generating, based on the received user input, instructions, which when executed by a processor of the robotic vacuum cleaner, are configured to cause the robotic vacuum cleaner to clean the locations of a floor of a building corresponding to the selected locations of the dust distribution map (see at least [0051] and [0031]). Regarding claim 14, Takayanagi teaches receiving the user input comprises receiving the user input via a touchscreen of the client device (see at least [0051]). 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. Claim 4 is rejected under 35 U.S.C. 103 as being unpatentable over US 20210278239 A1 (“Takayanagi”) in view of US 20240369377 A1 (“Pan”). Regarding claim 4, Takayangi is not explicit on planning the cleaning operation comprises ranking the locations in order of the amount of dust, and generating instructions which, when executed by a processor of the robotic vacuum cleaner, cause it to visit the locations in the order of decreasing amount of dust, however, Pan discloses planning the cleaning operation comprises ranking the locations in order of the amount of dust, and generating instructions which, when executed by a processor of the robotic vacuum cleaner, cause it to visit the locations in the order of decreasing amount of dust (see at least [0196]). One of ordinary skill in the art would have been motivated to combine the system disclosed by Takayanagi with the collection device disclosed by Pan so that the detection path for the collection device is set on the basis of the unreachable region, and the environmental data of the unreachable region is calculated, thereby allowing the environmental data of the region where the collection device cannot reach to be detected (Pan, [0297]). Claim 7 is rejected under 35 U.S.C. 103 as being unpatentable over US 20210278239 A1 (“Takayanagi”) in view of US 20220400923 A1 (“Eriksson”). Regarding claim 7, Takayanagi is not explicit on the one or more parameters comprise suction power; and the suction strength power is selected to be higher in a location, zone or grid element with a relatively higher amount of dust than in a location, zone or grid element with a relatively lower amount of dust, according to the received dust distribution data, however, Eriksson discloses the one or more parameters comprise suction power; and the suction strength power is selected to be higher in a location, zone or grid element with a relatively higher amount of dust than in a location, zone or grid element with a relatively lower amount of dust, according to the received dust distribution data (see at least [0045]). One of ordinary skill in the art would have been motivated to combine the system disclosed by Takayanagi with the dust extractor disclosed by Eriksson because dust extractors often use filter arrangements in order to collect and hold the finer dust particles from the particle-laden air flow. These filters need to be cleaned and/or replaced regularly. Filter replacement drives operational costs since operation usually needs to be paused during filter servicing. It is desired to extend the filter replacement intervals (Eriksson, [0004]). Claim 8 is rejected under 35 U.S.C. 103 as being unpatentable over US 20210278239 A1 (“Takayanagi”) in view of US 20200329937 A1 (“Sheikh”). Regarding claim 8, Takayanagi is not explicit on the one or more parameters comprise rate of rotation of a brush within an enclosure of the robotic vacuum cleaner, however Sheikh discloses the one or more parameters comprise rate of rotation of a brush within an enclosure of the robotic vacuum cleaner (see at least [0045]). One of ordinary skill in the art would have been motivated to combine the system disclosed by Takayanagi with the apparatus and methods for cleaning a surface and more particularly, to apparatus and methods for at least semi-autonomous cleaning of floors and/or other surfaces disclosed by Sheikh the arrangement of some robots configured to clean a surface, may lack a suitable drive system that can allow the robot to reach into corners and/or otherwise effectively clean the desired surface (Sheikh, [0004]). Claim 11 is rejected under 35 U.S.C. 103 as being unpatentable over US 20210278239 A1 (“Takayanagi”) in view of US 20240277201 A1 (“Zhang”). Regarding claim 11, though Takayanagi discloses planning a plurality of cleaning operations, based on the received dust distribution data (see at least [0096]), Takayanagi is not explicit on the one or more operating parameters comprises a respective frequency with which each location, each zone, or each grid element is cleaned by the robotic vacuum cleaner; and the frequency is selected to be higher in a location, zone or grid element with a relatively higher amount of dust than a location, zone or grid element with a relatively lower amount of dust, however, Zhang discloses the one or more operating parameters comprises a respective frequency with which each location, each zone, or each grid element is cleaned by the robotic vacuum cleaner; and the frequency is selected to be higher in a location, zone or grid element with a relatively higher amount of dust than a location, zone or grid element with a relatively lower amount of dust (see at least [0419]). One of ordinary skill in the art would have been motivated to combine the system disclosed by Takayanagi with the cleaning robot disclosed by Zhang because robots are playing increasingly important roles in our lives. Household robots, in particular, help to free people from heavy housework. Cleaning robots are relatively widely applicable and are therefore widely popular among users (Zhang, [0003]). Claim 15 is rejected under 35 U.S.C. 103 as being unpatentable over US 20210278239 A1 (“Takayanagi”) in view of US 20230062104 A1 (“Kumar”). Regarding claim 15, though Takayanagi discloses receiving dust distribution data indicating the distribution of dust particles on the floor of a building (see at least [0038]); Takayanagi is not explicit on comparing the dust distribution data with expected dust distribution data, based on stored dust distribution data, to determine a deviation between the amount of dust in one or more regions of the received dust distribution data from the corresponding region in the stored dust distribution data; and if a deviation exceeds a predetermined threshold in one or more region, generating an alert, however, Kumar discloses comparing the dust distribution data with expected dust distribution data, based on stored dust distribution data, to determine a deviation between the amount of dust in one or more regions of the received dust distribution data from the corresponding region in the stored dust distribution data (see at least [0112]); and if a deviation exceeds a predetermined threshold in one or more region, generating an alert (see at least [0053]). One of ordinary skill in the art would have been motivated to combine the system disclosed by Takayanagi with the autonomous vacuum disclosed by Kumar because conventional autonomous floor cleaning systems are limited in what information about an environment is presented to a user via user interfaces (Kumar, [0003]). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MATHEW FRANKLIN GORDON whose telephone number is (408)918-7612. The examiner can normally be reached Monday - Friday, 7:00 - 5:00 PST. 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, Hunter Lonsberry can be reached at (571) 272 - 7298. 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. /MATHEW FRANKLIN GORDON/Primary Examiner, Art Unit 3665
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Prosecution Timeline

Sep 16, 2024
Application Filed
Dec 13, 2025
Non-Final Rejection — §101, §102, §103
Apr 01, 2026
Interview Requested

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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
72%
Grant Probability
85%
With Interview (+13.3%)
2y 3m
Median Time to Grant
Low
PTA Risk
Based on 278 resolved cases by this examiner. Grant probability derived from career allow rate.

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