DOORKING, INC.
10Patents
1Active
10Granted
33Portfolio score
Filing activity: Apr 25, 1988 → Feb 5, 2016
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4916860A | Apparatus and method for opening and closing a gate | Fixed Constructions | 34 | Expired |
| US5076012A | Apparatus and method for opening and closing a gate | Fixed Constructions | 32 | Expired |
| US5752344A | Swing gate operator | Fixed Constructions | 28 | Expired |
| US5230179A | Apparatus and method for opening and closing a gate | Fixed Constructions | 25 | Expired |
| US5804938A | Gate operator with extensible actuating arm | Physics | 22 | Expired |
| US4970826A | Apparatus and method for opening and closing a gate | Fixed Constructions | 14 | Expired |
| US6856237B1 | Method and apparatus for radio frequency security system with automatic learning | Physics | 12 | Expired |
| US5942867A | Gate operator providing impact reduction at a fixed end position of movement | Fixed Constructions | 10 | Expired |
| US5918418A | Overhead door operator | Fixed Constructions | 6 | Expired |
| US10002480B2 | Apparatus and methods for entry control over a cellular network | Physics | 2 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.