David E. Albrecht
26Patents
10h-index
7Co-inventors
68Inventor score
Filing activity: Nov 17, 1976 → Jun 14, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4848405A | Insert means for fluid flow system | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4889369A | Adapter fitting | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US5010916A | Check valve | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4934411A | Insert means for fluid flow system | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5172615A | Internal wrench | Performing Operations; Transporting | 17 | Expired |
| US5000488A | Adapter fittings and connectors | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US4064911A | Hydraulic fluid reservoir for a closed hydraulic system | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US5139041A | Stop and lock plate for use with valve | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5018769A | Adapter fitting | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US5338075A | Combination fluid flow ports | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US5848813A | Threaded port for fluid flow connection | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US6467820B1 | High-pressure fluid-flow system having compact two-bolt and four-bolt flanged and modular connectors | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4887850A | Adapter fitting | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US5000490A | Adapter fitting | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US7828015B2 | Adapter plate for fastening and locking of components | Emerging Cross-Sectional Technologies | 3 | Active |
| US7891379B2 | Mechanical fastening and locking of structural, fluid, and electrical components and systems | Emerging Cross-Sectional Technologies | 2 | Active |
| US6776439B2 | Flange plates for fluid port interfaces | Emerging Cross-Sectional Technologies | 2 | Expired |
| US8850952B2 | Cylinder phaser valves | Emerging Cross-Sectional Technologies | 2 | Active |
| US9890802B2 | Cylinder phaser valves | Emerging Cross-Sectional Technologies | 1 | Active |
| US9091355B2 | Main stage in-line pressure control cartridge with optional reverse flow function | Emerging Cross-Sectional Technologies | 1 | Active |
| US6715798B2 | High-pressure fluid-flow system having compact two-bolt and four-bolt flanged and modular connectors | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US9518670B2 | Main stage in-line pressure control cartridge with stepped retainer collar | Emerging Cross-Sectional Technologies | 0 | Active |
| US8403006B2 | Kit for fastening and locking of components | Emerging Cross-Sectional Technologies | 0 | Active |
| US9482355B2 | Main stage in-line pressure control cartridge with optional reverse flow function | Emerging Cross-Sectional Technologies | 0 | Active |
| US11195162B2 | System for defining and tracking transactions of mobile devices | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.