Prosecution Insights
Last updated: August 06, 2026

Cantor Colburn LLP - Otis Elevator

38 pending office actions • 1 client • 17 examiners • 9 art units • 0 of 38 (0%) have an AI response strategy ready • 92 patents granted in the last 365 days

Quality Metrics (n=73473 apps, methodology: how we score firms)

88.1%
Allowance Rate
n=73473
+0.54σ
Allowance Rate (norm)
n=73473
3.2
OAs to Allowance
n=51629
-0.21σ
OAs to Allow (norm)
n=51629
1017 days
Time to Allowance
n=51629
+3.9pp
Interview Lift
n=73473
25.9%
RCE Rate
n=73473
2.1%
Appeal Rate
n=73473

Rejection Performance (% of received rejections ultimately overcome)

75.6%
§101 Overcome
n=3150
81.0%
§102 Overcome
n=23579
81.1%
§103 Overcome
n=36783
82.5%
§112 Overcome
n=23383

Specialization & Scale

H10K, G02F, G06F
Top CPC Subclasses
9%
Top-3 CPC Share
n=73473
68
Practitioners
n=73473
1080.5
Apps / Practitioner
n=73473

Portfolio Summary

38
Total Pending OAs
26
Non-Final OAs
11
Final Rejections
1
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 12 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

6
Overdue
0
Due this week
3
Due this month
3
Due in next 60 days
0
Due later

Deadline Fire Line

Every pending office action with a known statutory deadline, placed on a days-until-due axis. Dots left of Today are overdue; the further right, the more runway. Cases that share a deadline window stack vertically. 12 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (6)Due ≤ 30 days (3)Due ≤ 60 days (3)

Case Difficulty Mix

Difficulty is derived from the rejection statutes on the most recent pending office action. §101-driven and multi-statute cases are graded Hard; §112-only and obviousness-type double-patenting cases are graded Easy; everything else is Medium. "Unknown" means we have not yet parsed a statute for that office action.

23
Hard (61%)
15
Medium (39%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 + other4 (11%)
§103 only13 (34%)
§102 only2 (5%)
Multi-statute (no §101)19 (50%)

Industry Mix

How the docket's pending cases split across USPTO tech-center bands.

0
Life Sciences
0% of docket
2
Information Tech
5% of docket
0
Communications
0% of docket
10
Semiconductors
26% of docket
18
Mechanical / Eng
47% of docket
8
Business / Other
21% of docket

Time-on-OA Estimate

Manual office-action response work runs about 10 hours per case. The time-saved bands below show what IP Author's prosecution pipeline typically delivers — a conservative 20% on the low end, 35% in the middle, 50% on the high end.

380 h
Manual time on pending OAs
76 h
Time saved (low, 20%)
133 h
Time saved (mid, 35%)
3.3 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
UHLIR, CHRISTOPHER J 8 62.0% +9.4%
DHAKAL, BICKEY 5 84.3% +16.4%
TRAN, DIEM M 4 79.9% +13.5%
RIEGELMAN, MICHAEL A 3 78.1% +14.8%
CARRASQUILLO, JORGE L 3 81.6% +15.1%
DUDA, RINA I 3 80.5% +10.0%
JORGENSEN, ABBY A 2 74.1% +13.5%
IBRAHIM, MOHAMED 1 85.5% +7.4%
LE, BRIAN T 1 79.5% +29.5%
SINGH, KAVEL 1 83.6% +13.9%

Quick Wins (5)

Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 5 ordered by deadline are shown.

App #TitleExaminerDue in
17525124 SMOOTH BRAKING CONTROL METHOD AND DEVICE FOR ELEVATOR AND ELEVATOR BRAKE CARRASQUILLO, JORGE L 10d overdue
18903357 SYSTEM AND METHOD FOR TELEMETRY LOAD TESTING TO CONFIRM CAPABILITIES OF DISTRIBUTED SYSTEM IBRAHIM, MOHAMED
17988470 ELEVATOR SAFETY SYSTEM DHAKAL, BICKEY
17752343 ROBOT-SPECIFIC ELEVATOR SYSTEMS DHAKAL, BICKEY
17394581 SPATIAL LOCATION POSITIONING METHOD AND SYSTEM FOR ELEVATOR AND ELEVATOR DHAKAL, BICKEY

Hard Cases (23)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 8 ordered by deadline are shown.

App #TitleExaminerDue in
18070848 ELEVATOR CONTROL SYSTEM, ELEVATOR SYSTEM AND METHOD FOR CONTROLLING ELEVATOR DHAKAL, BICKEY 30d overdue
17095425 CONTROL SYSTEM AND METHOD FOR LOCATION OF A ROBOT PASSENGER WHEN WAITING FOR AN ELEVATOR UHLIR, CHRISTOPHER J 23d overdue
18779753 COMB PLATE FOR CONVEYOR DEVICE, AND CONVEYOR DEVICE SINGH, KAVEL 19d overdue
17980896 ELEVATOR BRAKING DEVICE AND ELEVATOR SYSTEM GLASS, ERICK DAVID 9d
18928549 CONTROL METHOD FOR A CONVEYOR, CORRESPONDING CONTROL SYSTEM, CONTROL NODE, AND CONTROL END JORGENSEN, ABBY A 28d
17977048 FAULT MONITORING DEVICE AND METHOD FOR ELEVATOR MOTOR UHLIR, CHRISTOPHER J 34d
18970079 ELEVATOR SYSTEM AND GUIDING DEVICE THEREFOR RIEGELMAN, MICHAEL A 49d
19339955 ELEVATOR MACHINE SUPPORT STRUCTURE AND ELEVATOR SYSTEM COMPRISING AN ELEVATOR MACHINE SUPPORT STRUCTURE TRAN, DIEM M

Interview Candidates (22)

Cases in front of an examiner whose interview lift is 10 percentage points or more — i.e. interviewed cases historically resolve more favorably than non-interviewed ones. The top 8 ordered by deadline are shown.

App #TitleExaminerDue in
18447494 SYSTEM FOR DETECTING BROKEN COMBPLATE TEETH OF AN ESCALATOR JORGENSEN, ABBY A 71d overdue
18070848 ELEVATOR CONTROL SYSTEM, ELEVATOR SYSTEM AND METHOD FOR CONTROLLING ELEVATOR DHAKAL, BICKEY 30d overdue
18779753 COMB PLATE FOR CONVEYOR DEVICE, AND CONVEYOR DEVICE SINGH, KAVEL 19d overdue
17525124 SMOOTH BRAKING CONTROL METHOD AND DEVICE FOR ELEVATOR AND ELEVATOR BRAKE CARRASQUILLO, JORGE L 10d overdue
18928549 CONTROL METHOD FOR A CONVEYOR, CORRESPONDING CONTROL SYSTEM, CONTROL NODE, AND CONTROL END JORGENSEN, ABBY A 28d
18970079 ELEVATOR SYSTEM AND GUIDING DEVICE THEREFOR RIEGELMAN, MICHAEL A 49d
18817997 ELEVATOR DATA COMMUNICATION SYSTEM LE, BRIAN T 55d
19339955 ELEVATOR MACHINE SUPPORT STRUCTURE AND ELEVATOR SYSTEM COMPRISING AN ELEVATOR MACHINE SUPPORT STRUCTURE TRAN, DIEM M

Client Portfolio (1 client)

Client (Assignee)Pending OAs
Otis Worldwide 38

Top Art Units

Art UnitApps
36547
36197
28464
28964
36513
28372
24441
24791
36611

Pending Office Actions

App #TitleClientExaminerArt UnitStatutesStatusDue inAIFiled
19339955 ELEVATOR MACHINE SUPPORT STRUCTURE AND ELEVATOR SYSTEM COMPRISING AN ELEVATOR MACHINE SUPPORT STRUCTURE Otis Elevator Company TRAN, DIEM M 3654 §102§112 Non-Final OA Pending Sep 25, 2025
19339898 ELEVATOR SYSTEM WITH A GUIDING STRUCTURE COMPRISING AT LEAST ONE GUIDE RAIL BRACKET Otis Elevator Company TRAN, DIEM M 3654 §102§103 Non-Final OA Pending Sep 25, 2025
19310366 ELEVATOR SYSTEM HAVING A PLATFORM ON TOP OF OR BELOW THE CAR Otis Elevator Company TRAN, DIEM M 3654 §102 Non-Final OA Pending Aug 26, 2025
19236175 ELEVATOR CAR AND ELEVATOR ASSEMBLY Otis Elevator Company RIEGELMAN, MICHAEL A 3654 §102§103§112 Non-Final OA Pending Jun 12, 2025
19196227 ELEVATOR SHEAVE LINER, ELEVATOR SHEAVE ASSEMBLY, AND ELEVATOR SYSTEM Otis Elevator Company TRAN, DIEM M 3654 §103§112 Non-Final OA Pending May 01, 2025
19184444 UNLOCKING DEVICE AND UNLOCKING METHOD OF ELEVATOR LANDING DOOR, AND ELEVATOR SYSTEM Otis Elevator Company RIEGELMAN, MICHAEL A 3654 §102§112 Non-Final OA Pending Apr 21, 2025
18970079 ELEVATOR SYSTEM AND GUIDING DEVICE THEREFOR Otis Elevator Company RIEGELMAN, MICHAEL A 3654 §102§103 Final Rejection 49d Pending Dec 05, 2024
18928549 CONTROL METHOD FOR A CONVEYOR, CORRESPONDING CONTROL SYSTEM, CONTROL NODE, AND CONTROL END Otis Elevator Company JORGENSEN, ABBY A 3651 §102§112 Non-Final OA 28d Pending Oct 28, 2024
18903357 SYSTEM AND METHOD FOR TELEMETRY LOAD TESTING TO CONFIRM CAPABILITIES OF DISTRIBUTED SYSTEM Otis Elevator Company IBRAHIM, MOHAMED 2444 §103 Non-Final OA Pending Oct 01, 2024
18817997 ELEVATOR DATA COMMUNICATION SYSTEM Otis Elevator Company LE, BRIAN T 2479 §103Other Final Rejection 55d Pending Aug 28, 2024
18779753 COMB PLATE FOR CONVEYOR DEVICE, AND CONVEYOR DEVICE Otis Elevator Company SINGH, KAVEL 3651 §102§103 Non-Final OA 19d overdue Pending Jul 22, 2024
18635579 SCALABLE ARCHITECURE FOR SAFE TORQUE OFF AND SAFE BRAKE CONTROL Otis Elevator Company ISLAM, MUHAMMAD S 2846 §101§112 Non-Final OA Pending Apr 15, 2024
18404240 ELEVATOR SYSTEM CONFIGURED TO PROVIDE CAR TONE BASED ON USER FEEDBACK Otis Elevator Company CARRASQUILLO, JORGE L §102§112 Non-Final OA Pending Jan 04, 2024
18397704 SYSTEM AND METHOD OF MONITORING AN ELEVATOR BELT FOR WEAR Otis Elevator Company DUDA, RINA I §103§112 Non-Final OA Pending Dec 27, 2023
18513049 ELEVATOR SYSTEM AND METHOD OF AUTHENTICATING A COMPUTING DEVICE TO A SAFETY CONTROLLER OF AN ELEVATOR SYSTEM Otis Elevator Company CARRASQUILLO, JORGE L §101§103 Non-Final OA Pending Nov 17, 2023
18498456 AUDIBLE FEEDBACK DEVICE Otis Elevator Company CHAN, KAWING §102§103 Non-Final OA Pending Oct 31, 2023
18487652 ELEVATOR TENSION MEMBER ELONGATION AND STIFFNESS MONITORING SYSTEM Otis Elevator Company DUDA, RINA I §102§103 Non-Final OA Pending Oct 16, 2023
18483306 ELEVATOR PIT VERTICAL ENTRANCE SAFETY NET SYSTEM Otis Elevator Company DHAKAL, BICKEY §102§103 Non-Final OA Pending Oct 09, 2023
18480735 ASSISTED CONVEYANCE SYSTEM PROBLEM RESOLUTION Otis Elevator Company DUDA, RINA I §101§102§112 Non-Final OA Pending Oct 04, 2023
18468383 SYSTEM AND METHOD OF PROVIDING PIT ACCESS PROTECTION Otis Elevator Company SCHREIBER, CHRISTINA MARIE §103§112 Non-Final OA Pending Sep 15, 2023
18447494 SYSTEM FOR DETECTING BROKEN COMBPLATE TEETH OF AN ESCALATOR Otis Elevator Company JORGENSEN, ABBY A 3651 §103 Final Rejection 71d overdue Pending Aug 10, 2023
18336582 BRAKE CIRCUIT ACCESS FROM LANDING Otis Elevator Company UHLIR, CHRISTOPHER J 2846 §103 Non-Final OA Pending Jun 16, 2023
18070848 ELEVATOR CONTROL SYSTEM, ELEVATOR SYSTEM AND METHOD FOR CONTROLLING ELEVATOR Otis Elevator Company DHAKAL, BICKEY 2896 §102§103 Non-Final OA 30d overdue Pending Nov 29, 2022
18070041 APPARATUS AND METHOD FOR MANAGING CALLING UNITS AND ELEVATOR SYSTEM Otis Elevator Company DONELS, JEFFREY 2837 §102 Non-Final OA 30d Pending Nov 28, 2022
17988470 ELEVATOR SAFETY SYSTEM Otis Elevator Company DHAKAL, BICKEY 2896 §103 Non-Final OA Pending Nov 16, 2022
17980896 ELEVATOR BRAKING DEVICE AND ELEVATOR SYSTEM Otis Elevator Company GLASS, ERICK DAVID 2846 §102§103 Non-Final OA 9d Pending Nov 04, 2022
17977048 FAULT MONITORING DEVICE AND METHOD FOR ELEVATOR MOTOR Otis Elevator Company UHLIR, CHRISTOPHER J 3619 §101§103§112 Non-Final OA 34d Pending Oct 31, 2022
17977012 STIMULATION SYSTEM AND METHOD FOR MONITORING AN ELEVATOR SYSTEM Otis Elevator Company UHLIR, CHRISTOPHER J 3619 §103 Final Rejection Pending Oct 31, 2022
17973671 ELEVATOR SYSTEMS WITH IMPROVED MONITORING Otis Elevator Company ELARABI, TAREK A 3661 §102§103 Non-Final OA Pending Oct 26, 2022
17838878 COMPONENT MISALIGNMENT SENSING Otis Elevator Company QIN, JIANCHUN 2837 §103 Final Rejection 17d overdue Pending Jun 13, 2022
17752343 ROBOT-SPECIFIC ELEVATOR SYSTEMS Otis Elevator Company DHAKAL, BICKEY 2896 §103 Non-Final OA Pending May 24, 2022
17525124 SMOOTH BRAKING CONTROL METHOD AND DEVICE FOR ELEVATOR AND ELEVATOR BRAKE Otis Elevator Company CARRASQUILLO, JORGE L 2846 §103 Final Rejection 10d overdue Pending Nov 12, 2021
17398715 ELEVATOR POSITION REFERENCE SYSTEMS Otis Elevator Company UHLIR, CHRISTOPHER J 3619 §103 Final Rejection Pending Aug 10, 2021
17396096 METHOD OF PREVENTING GRAVITY JUMP AT EMERGENCY STOP IN ELEVATOR SYSTEMS Otis Elevator Company UHLIR, CHRISTOPHER J 3619 §103 Final Rejection Pending Aug 06, 2021
17394581 SPATIAL LOCATION POSITIONING METHOD AND SYSTEM FOR ELEVATOR AND ELEVATOR Otis Elevator Company DHAKAL, BICKEY 2896 §103 Final Rejection Pending Aug 05, 2021
17373995 ELEVATOR SAFETY CIRCUIT Otis Elevator Company UHLIR, CHRISTOPHER J 3619 §103§112 Final Rejection Pending Jul 13, 2021
17095425 CONTROL SYSTEM AND METHOD FOR LOCATION OF A ROBOT PASSENGER WHEN WAITING FOR AN ELEVATOR Otis Elevator Company UHLIR, CHRISTOPHER J 3619 §102§103 Final Rejection 23d overdue Pending Nov 11, 2020
16943007 MULTI-CAR ELEVATOR SYSTEM WITH AUTONOMOUS CAR MOVERS CONFIGURED FOR COLLISION AVOIDANCE Otis Elevator Company UHLIR, CHRISTOPHER J 3619 §103 Non-Final OA Pending Jul 30, 2020

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