He; Thomas

Patent Applications and Registrations

Patent applications and USPTO patent grants for He; Thomas.The latest application filed is for "tubular linear synchronous motor control for elevator doors".

Company Profile

0.11.3

He; Thomas - Unionville CT
He; Thomas - Ellicott City MD

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Tubular linear synchronous motor control for elevator doors Grant 7,202,615 - Morris , et al. April 10, 2	2007-04-10
Tubular linear synchronous motor control for elevator doors App 20050205362 - Morris, Nigel Bruce ; et al.	2005-09-22
Tubular linear synchronous motor control for elevator doors Grant 6,943,508 - Morris , et al. September 13, 2	2005-09-13
Tubular linear synchronous motor door and encoder-less control App 20040055829 - Morris, Nigel Bruce ; et al.	2004-03-25
Acceleration control system utilizing elevator platform stabilization coupler Grant 6,431,325 - Bledsoe , et al. August 13, 2	2002-08-13
Elevator platform stabilization coupler App 20020070081 - Bledsoe, Joseph ; et al.	2002-06-13
Automatic open loop force gain control of magnetic actuators for elevator active suspension Grant 5,929,399 - Jamieson , et al. July 27, 1	1999-07-27
Multi-sided medical diagnostic test device Grant D404,830 - Childs , et al. January 26, 1	1999-01-26
Triac drive for three-phase line-powered linear induction motor elevator door operator Grant 5,808,246 - Peruggi , et al. September 15, 1	1998-09-15
Time-optimal control of an AC line-driven linear motor elevator door operator Grant 5,682,023 - McHugh , et al. October 28, 1	1997-10-28
Linear induction motor door drive assembly for elevators Grant 5,612,518 - Jaminet , et al. March 18, 1	1997-03-18
Maintaining open loop current drive to linear induction motor Grant 5,503,248 - Peruggi , et al. April 2, 1	1996-04-02
Smooth and quiet linear induction motor elevator door operation Grant 5,495,918 - Peruggi , et al. March 5, 1	1996-03-05
Cammed wedge elevator car door coupling Grant 5,435,415 - Kulak , et al. July 25, 1	1995-07-25

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