David R. Torlai — 13 Patents at Otis Elevator

David R. Torlai has been granted 13 US patents while listed as an inventor at Otis Elevator. The first was granted in 2001 and the most recent in July 2025. David R. Torlai ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list David R. Torlai in Torrington, CT, US.

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12358203	Elevator load bearing suspension member including a corrosion inhibitor in the jacket	Brad Guilani	2025-07-15
12103822	Elevator system safety brake	Girija Marathe	2024-10-01
11261062	Modular sheave unit	Jun Ma	2022-03-01
11254544	Friction liner and traction sheave	James L. Hubbard, Peter Keyo	2022-02-22
11111108	Coated sheave	Xiaoyuan Chang	2021-09-07
10822202	Unitized segmented sheave assembly	Austin Lee, Jun Ma	2020-11-03
10766746	Friction liner and traction sheave	James L. Hubbard, Peter Keyo	2020-09-08
10647547	Methods and apparatuses for applying a substrate onto an elevator sheave	Xiaoyuan Chang, Peter Keyo, Lance L. Lavender, Hong Yang	2020-05-12
10023432	Guide rail for elevator	Xiaoyuan Chang	2018-07-17
9701517	Methods and apparatuses for applying a substrate onto an elevator sheave	Xiaoyuan Chang, Peter Keyo, Lance L. Lavender, Hong Yang	2017-07-11
8182157	Thrust bearing assembly	Charles W. Shattuck, Richard F. Murphy	2012-05-22
7845857	Thrust bearing assembly	Charles W. Shattuck, Richard F. Murphy	2010-12-07
6293168	Stamped rocker arms for machines such as internal combustion engines	Eric Hanniger	2001-09-25	$20,701,000

David R. Torlai — 13 Patents

Issued Patents All Time

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