Prosecution Insights
Last updated: April 19, 2026
Application No. 17/984,787

ELEVATOR SAFETY DEVICES

Non-Final OA §102
Filed
Nov 10, 2022
Examiner
GLASS, ERICK DAVID
Art Unit
2846
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Otis Elevator Company
OA Round
1 (Non-Final)
89%
Grant Probability
Favorable
1-2
OA Rounds
2y 5m
To Grant
96%
With Interview

Examiner Intelligence

Grants 89% — above average
89%
Career Allow Rate
626 granted / 700 resolved
+21.4% vs TC avg
Moderate +7% lift
Without
With
+7.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
23 currently pending
Career history
723
Total Applications
across all art units

Statute-Specific Performance

§101
1.2%
-38.8% vs TC avg
§103
39.0%
-1.0% vs TC avg
§102
46.1%
+6.1% vs TC avg
§112
12.1%
-27.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 700 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 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)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 1-15 are rejected under 35 U.S.C. 102(a)(2) as being taught by Knecht et al (PBPUB 2018/0215579). With respect to claim 1, Knecht teaches an elevator safety device for monitoring a landing door of an elevator system, the elevator system comprising a landing door sensor arranged to detect a state of the landing door, the elevator safety device comprising: a power source (fig. 1, 14) arranged to power the landing door sensor (fig. 1, 11a) independently of a power supply (fig. 1, 12) of the elevator system (fig. 1, 3); and a memory (fig. 2a, 151/152) arranged to record a state of the landing door (fig. 1, 30a) detected by the landing door sensor when the landing door sensor is powered by the power source (fig. 1, 14). With respect to claim 2, Knecht teaches arranged to power the landing door sensor using the power source (fig. 1, 14) when the power supply (fig. 1, 12) of the elevator system is interrupted and to disconnect (paragraph 0082; 13 changes position) the landing door sensor from the power source when the power supply of the elevator system is active. With respect to claim 3, Knecht teaches wherein the power source comprises a battery (fig. 1, 14), a capacitor or a supercapacitor. With respect to claim 4, Knecht teaches arranged to report (paragraph 0017) the recorded state of the landing door to an elevator controller (fig. 1, 1000) of the elevator system following an interruption to the power supply of the elevator system. With respect to claim 5, Knecht teaches comprising a microcontroller (fig. 1, 150) arranged to act as an interface between (paragraph 0090) the memory and the elevator controller (fig. 1, 1000). With respect to claim 6, Knecht teaches wherein the memory (fig. 2a, 151/152) is arranged to record a single data point that indicates if (paragraph 0094) the landing door has opened at any point since the memory was last reset (paragraph 0052). With respect to claim 7, Knecht teaches wherein the memory comprises a non-volatile memory (152 RAM inherent). With respect to claim 8, Knecht teaches wherein the power source is arranged to be connected in series with the landing door sensor (fig. 1, 14 with 11a). With respect to claim 9, Knecht teaches wherein the memory is arranged to be connected in series with the landing door sensor (fig. 2a, 11a with 152). With respect to claim 10, Knecht teaches an elevator system comprising: a landing door (fig. 1, 30a); a landing door sensor (fig. 1, 11a) arranged to detect a state of the landing door; a power supply (fig. 1, 12) arranged to power said elevator system (3); an elevator controller (fig. 1, 1000) arranged to control the elevator system; and the elevator safety device (fig. 1, 10a) as claimed in claim 1, arranged to monitor said landing door (10). With respect to claim 11, Knecht teaches wherein the elevator controller (1000) is arranged to control the elevator system according to the state of the landing door recorded (paragraph 0017) by the memory. With respect to claim 12, Knecht teaches wherein the elevator controller is arranged to initiate an inspection mode (paragraph 0053) if the memory indicates that landing door has been opened (paragraph 0081; door open for maintenance) and to initiate a normal operational mode if the memory (paragraph 0030; return to normal mode) indicates that the landing door has not been opened. With respect to claim 13, Knecht teaches wherein the elevator controller (1000) is arranged to receive information from the landing door sensor independently of the elevator safety device (fig. 1, arrows displace signal paths independent between 2, 3/38, 10a), and to control the elevator system (3) according to information received from the landing door sensor independently of the elevator safety device. With respect to claim 14, Knecht teaches the landing door sensor comprises a switch (fig. 1, 11a with switch) which completes an electrical connection between a first electrical terminal (fig. right of 11a/top) and a second electrical terminal (fig. 1, left of 11a/bottom) when the landing door is closed, and which breaks said electrical connection (open 11a breaks) when the landing door is open; and the power source (14) is arranged to be connected to the first terminal of the switch; and the memory (151/152) is arranged to be connected to the second terminal of the switch. With respect to claim 15, Knecht teaches a plurality of landing doors (fig. 1, 30a/30b); a plurality of landing door sensors (fig. 1, 11a/11b), each landing door sensor being arranged to detect a state of a respective landing door; and a first elevator safety device (fig. 1, 10a) arranged to monitor a first set of the landing doors and a second elevator safety device (fig. 1, 10b) arranged to monitor a second set of the landing doors. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ERICK DAVID GLASS whose telephone number is (571)272-8395. The examiner can normally be reached Mon-Fri_8-5pm. 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. /ERICK D GLASS/Primary Examiner, Art Unit 2846
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Prosecution Timeline

Nov 10, 2022
Application Filed
Dec 05, 2025
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
89%
Grant Probability
96%
With Interview (+7.0%)
2y 5m
Median Time to Grant
Low
PTA Risk
Based on 700 resolved cases by this examiner. Grant probability derived from career allow rate.

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