Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Elevator communication controller

Elevator communication controller

US Patent 4683989 · Granted Aug 4, 1987

Estimated economic value: $2,760,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Trip unit including separable component to save and restore settings, and circui2014
Trip unit communication adapter module employing communication protocol to commu2014
Shift control mechanism to manually shift an automatic transmission1999
Shift control mechanism to manually shift an automatic transmission1998
Electronic gear display for an electronically-controlled automatic transmission 1997
Shift control mechanism to manually shift an automatic transmission1996
Method of logging data in a transport refrigeration unit1995
Method and apparatus for simulating a microelectric interconnect circuit1995
Shift control mechanism1993
Shift control lever assembly1993
Probabilistic inference gate1991
Self-adjusting gear shift lever assembly1991