Prosecution Insights
Last updated: April 19, 2026
Application No. 17/939,666

APPARATUS, METHODS, AND COMPUTER-READABLE MEDIUM FOR CONTROLLING POSITIONING OF A DESK

Non-Final OA §103
Filed
Sep 07, 2022
Examiner
YANCHUS III, PAUL B
Art Unit
2115
Tech Center
2100 — Computer Architecture & Software
Assignee
LENOVO (SINGAPORE) PTE. LTD.
OA Round
3 (Non-Final)
83%
Grant Probability
Favorable
3-4
OA Rounds
2y 11m
To Grant
97%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
685 granted / 827 resolved
+27.8% vs TC avg
Moderate +14% lift
Without
With
+14.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
29 currently pending
Career history
856
Total Applications
across all art units

Statute-Specific Performance

§101
7.3%
-32.7% vs TC avg
§103
51.5%
+11.5% vs TC avg
§102
24.6%
-15.4% vs TC avg
§112
5.1%
-34.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 827 resolved cases

Office Action

§103
DETAILED ACTION This non-final office action is in response to amendments filed on 10/8/25. 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 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 1-6, 8-11, 13-18 and 20-23 are rejected under 35 U.S.C. 103 as being unpatentable over Stubben, US Patent Application Publication no. 2009/0299689 and Tsai et al., US Patent Application Publication no. 2017/0052517 [Tsai]1, in view of Knapp et al., US Patent Application Publication no. 2020/0170404 [Knapp]. Regarding claims 1, 8 and 15, Stubben discloses a table apparatus comprising: a tabletop [table top 100 in Figure 1 and paragraph 0011]; a plurality of expandable legs configured to support the tabletop [legs 101 in Figure 1 and paragraph 0011]; a plurality of motors, wherein each motor of the plurality of motors is configured to alter a length of a respective expandable leg of the plurality of expandable legs [motors 207-210 in Figure 2 and paragraph 0012]; a plurality of position sensors, wherein each sensor is configured to identify a current position of a respective expandable leg of the plurality of expandable legs [each leg is controlled to extend or retract to a desired position to control tilt of the table, paragraph 0015. A position sensor for each leg is necessary in order to perform the extension or retraction of each leg to a desired position]; a processor in signal communication with the plurality of motors and the plurality of position sensors [microprocessor, paragraph 0012]; and a memory configured to store instructions that, when executed by the processor, cause the processor [microprocessor inherently includes a memory for storing instructions] to: receive a first signal [reading an accelerometer to determine if the table is level, paragraph 0015]; determine a second signal indicating a current position of each expandable leg of the plurality of expandable legs, based on signals received from the plurality of position sensors [tracking a position of each leg is necessary in order to perform the extension or retraction of each leg to a desired position]; determine a respective projected length value for each expandable leg in the plurality of expandable legs responsive to receiving the first signal [computing leg extension or retraction requirements to cause the table to be level, paragraph 0015]; and command one or more motors of the plurality of motors to adjust a length of its associated first particular expandable leg based on the projected length value for one or more expandable legs of the plurality of expandable legs and the current position of each expandable leg of the plurality of expandable legs [legs are extended or retracted to the computed position, paragraph 0015]. Stubben discloses a table with a plurality of legs that are each automatically extended or retracted to computed positions in order to control height and tilt of a tabletop. Stubben does not disclose that the table automatically controls the height and tilt of the tabletop based on identified physical characteristics of a user of the table apparatus. Like Stubben, Tsai disclose a table that may automatically control the height and tilt of a table top. Tsai further discloses sensing user physical characteristic data to determine user identity and user height and controlling the height and tilt of the tabletop based on the user identity and user height determined from the sensed user physical characteristics [paragraphs 0023-0025, 0039-0042, 0059-0067]. Since it was known in the art before the effective filing date of the claimed invention to automatically adjust a tabletop height and tilt based on identified physical characteristics of a user of a table, it would have been obvious to one of ordinary skill in the art to incorporate the Tsai automatic adjustment teachings into the Stubben table in order to improve the convenience of use of the desk by eliminating the need to manually adjust the tabletop height and tilt for different users [Tsai, paragraphs 0004-0005]. Stubben and Tsai do not disclose that sensing user physical characteristic data includes sensing a user height value in real time. Like Stubben and Tsai, Knapp discloses a height adjustable table in which table height is set according to sensed user physical characteristic data. Specifically, Knapp discloses analyzing a data stream from a camera to detect position of a current user’s face in order to detect the user’s current height and adjusting the table height based on the detected height of the user [paragraphs 0081-0085]. Since it was known in the art before the effective filing date of the claimed invention to automatically adjust table height based on real time detected user height data, it would have been obvious to one of ordinary skill in the art to apply the Knapp teachings into the Stubben and Tsai table in order to improve the accuracy of table height adjustment decisions by performing real time determinations of a current user’s height. Regarding claims 2, 9 and 16, Stubben further discloses a level sensor configured to generate the sensor signal, the sensor signal comprises a level value of the tabletop, wherein the instructions further cause the processor to determine the projected length value based on the level value and a predefined level value [a tilt of the table is measured based on accelerometer readings to determine leg extension or retraction requirements to level the table, paragraph 0015]. Regarding claims 3, 10 and 17, Stubben further discloses a level sensor configured to generate the sensor signal, the sensor signal comprises a level value of the tabletop, the instructions are further configured to: sense an unstable condition based on the level value; and adjust a length of one or more legs to counter the unstable condition [a tilt of the table is measured based on accelerometer readings to determine leg extension or retraction requirements to place the table in a level position, paragraph 0015]. Regarding claims 4, 11 and 18, Tsai further discloses automatically adjusting a drafting table level to an inclination based on the identified physical characteristics of the user of the table [paragraphs 0059-0067]. Regarding claims 5, 14 and 20, Tsai further discloses a communication device configured to receive the first signal from a proximate user device [input module, paragraph 0068]. Regarding claims 6 and 13, Knapp further discloses an image sensor configured to: generate, in real time, an image of the user in an area proximate the table apparatus, determine height value of the user from the generated image, generate the first signal including the height value of the user, and transmit, in real time, the first signal including the height value of the user to the processor [analyzing a data stream from a camera to detect position of a current user’s face in order to detect the user’s current height and adjusting the desk height based on the detected height of the user, paragraphs 0081-0085]. Regarding claims 21-23, Stubben further discloses that the plurality of expandable legs comprises four expandable legs [Figure 1 and paragraph 0011]. Response to Arguments Applicant’s arguments with respect to the claims have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to PAUL B YANCHUS III whose telephone number is (571)272-3678. The examiner can normally be reached Monday-Friday 9am-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, Thomas Lee can be reached at (571) 272-3667. 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. /PAUL B YANCHUS III/Primary Examiner, Art Unit 2115 November 14, 2025 1 Stubben and Tsai were previously cited.
Read full office action

Prosecution Timeline

Sep 07, 2022
Application Filed
Feb 22, 2025
Non-Final Rejection — §103
May 15, 2025
Examiner Interview Summary
May 15, 2025
Applicant Interview (Telephonic)
May 27, 2025
Response Filed
Sep 06, 2025
Final Rejection — §103
Sep 22, 2025
Applicant Interview (Telephonic)
Sep 22, 2025
Examiner Interview Summary
Sep 26, 2025
Response after Non-Final Action
Oct 08, 2025
Request for Continued Examination
Oct 15, 2025
Response after Non-Final Action
Nov 14, 2025
Non-Final Rejection — §103 (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

3-4
Expected OA Rounds
83%
Grant Probability
97%
With Interview (+14.2%)
2y 11m
Median Time to Grant
High
PTA Risk
Based on 827 resolved cases by this examiner. Grant probability derived from career allow rate.

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