David Stadler
19Patents
10h-index
8Co-inventors
65Inventor score
Filing activity: Jul 12, 1991 → Feb 27, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5559491A | Automatically armed vehicle anti-theft system | Performing Operations; Transporting | 43 | Expired |
| US7484908B2 | Manhole cover security lock with controlled pressure release | Fixed Constructions | 29 | Active |
| US5172094A | Automatically armed vehicle anti-theft system | Performing Operations; Transporting | 26 | Expired |
| US7891904B2 | Manhole cover stop mechanism | Fixed Constructions | 23 | Active |
| US6764261B1 | Locking device and method for catch basin and manhole covers, and the like | Fixed Constructions | 22 | Expired |
| US5750014A | Apparatus for selectively coating metal parts | Chemistry; Metallurgy | 21 | Expired |
| US7244075B2 | Telescoping bollard with screw drive | Fixed Constructions | 18 | Expired |
| US5394135A | Automatically armed vehicle anti-theft system | Performing Operations; Transporting | 18 | Expired |
| US7712995B2 | Method of controllably venting gases generated by explosions in a manhole space | Fixed Constructions | 14 | Active |
| US5534126A | Apparatus and method for selective coating of metal parts | Chemistry; Metallurgy | 10 | Expired |
| US8794865B2 | Bollard assembly | Emerging Cross-Sectional Technologies | 10 | Active |
| US5161939A | Air compression system | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US9416516B2 | Pressure responsive locking latch arrangement for manhole covers | Fixed Constructions | 7 | Active |
| US10480679B2 | Security cover for a valve box with a positively operated automatically lubricated locking mechanism | Emerging Cross-Sectional Technologies | 6 | Active |
| US9790714B1 | Locking cover assembly for preventing unauthorized access to a utility shut off valve | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US10935159B2 | Locking security cover for a valve box | Emerging Cross-Sectional Technologies | 1 | Active |
| US11761165B1 | Manhole cover | Fixed Constructions | 1 | Active |
| US10845570B2 | Optical device for enhancing resolution of an image | Electricity | 0 | Active |
| US9863115B2 | Controlled pressure release manhole cover assembly | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.