Harold Terry
39Patents
11h-index
61Co-inventors
78Inventor score
Filing activity: Apr 17, 1986 → Nov 1, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5984051A | Remote elevator call requests with descriptor tags | Performing Operations; Transporting | 103 | Expired |
| USD831639S1 | Operating/display panel | General | 36 | Active |
| US8939262B2 | Elevator over-acceleration and over-speed protection system | Performing Operations; Transporting | 28 | Active |
| US7650966B2 | Elevator system including multiple cars in a hoistway, destination entry control and parking positions | Performing Operations; Transporting | 24 | Expired |
| USD880327S1 | Operating/display panel | General | 19 | Active |
| US8136635B2 | Method and system for maintaining distance between elevator cars in an elevator system with multiple cars in a single hoistway | Performing Operations; Transporting | 18 | Active |
| US8631909B2 | Electromagnetic safety trigger | Performing Operations; Transporting | 16 | Active |
| US7819228B2 | Collison prevention in hoistway with two elevator cars | Performing Operations; Transporting | 15 | Active |
| US5635689A | Acceleration damping of elevator resonant modes and hydraulic elevator pump leakage compensation | Performing Operations; Transporting | 13 | Expired |
| USD941694S1 | Operating/display panel | General | 12 | Active |
| US4726450A | Hydraulic elevator with dynamically programmed motor-operated valve | Performing Operations; Transporting | 12 | Expired |
| US9663327B2 | Elevator braking system | Performing Operations; Transporting | 11 | Active |
| US7987947B2 | Call indicator provided near elevator car currently assigned to the call | Performing Operations; Transporting | 10 | Active |
| USD880326S1 | Operating/display panel | General | 10 | Active |
| US4700748A | Pressure-referenced programmed flow control in a hydraulic valve | Emerging Cross-Sectional Technologies | 10 | Expired |
| US8307952B2 | Elevator system with multiple cars in a hoistway | Performing Operations; Transporting | 9 | Active |
| US9399562B2 | Elevator speed and position detection system using an optical sensor | Performing Operations; Transporting | 9 | Active |
| US7917341B2 | Elevator system including multiple cars in a hoistway destination entry control and parking positions | Performing Operations; Transporting | 8 | Active |
| US9010499B2 | Multi-car elevator hoistway separation assurance | Performing Operations; Transporting | 8 | Active |
| USD978004S1 | Operating/display panel | General | 7 | Active |
| US8820483B2 | Elevator machine support | Performing Operations; Transporting | 6 | Active |
| US9688512B2 | Elevator brake | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US9321610B2 | Frictional damper for reducing elevator car movement | Performing Operations; Transporting | 4 | Active |
| US8793939B2 | Elevator system and installation method | Emerging Cross-Sectional Technologies | 4 | Active |
| US9242834B2 | Wireless destination entry for elevator dispatching system via web page that is pushed to a wireless device | Performing Operations; Transporting | 4 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.