David L. Farley
35Patents
22h-index
10Co-inventors
82Inventor score
Filing activity: Oct 24, 1974 → Sep 10, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5813456A | Retrievable bridge plug and retrieving tool | Fixed Constructions | 133 | Expired |
| US4113012A | Reclosable circulation valve for use in oil well testing | Fixed Constructions | 82 | Expired |
| US4879776A | Anatomically conformable foam support pad | Human Necessities | 80 | Expired |
| US5430901A | Anatomically conformable therapeutic mattress overlay | Emerging Cross-Sectional Technologies | 72 | Expired |
| US5111542A | Anatomically conformable foam support pad | Human Necessities | 65 | Expired |
| US5038433A | Anatomically conformable foam support pad | Human Necessities | 58 | Expired |
| US5077849A | Anatomically conformable foam support pad | Human Necessities | 57 | Expired |
| US5449040A | Wireline-set tubing-release packer apparatus | Fixed Constructions | 52 | Expired |
| US4858690A | Upward movement only actuated gravel pack system | Fixed Constructions | 49 | Expired |
| US3964544A | Pressure operated isolation valve for use in a well testing and treating apparatus, and its method of operation | Fixed Constructions | 42 | Expired |
| US4440218A | Slurry up particulate placement tool | Fixed Constructions | 39 | Expired |
| US3976136A | Pressure operated isolation valve for use in a well testing apparatus and its method of operation | Fixed Constructions | 39 | Expired |
| USD311108S | Foam pad | General | 32 | Expired |
| US4047564A | Weight and pressure operated well testing apparatus and its method of operation | Fixed Constructions | 31 | Expired |
| USD316202S | Foam pad | General | 31 | Expired |
| US5178811A | Method of forming an anatomically conformable foam support pad | Human Necessities | 30 | Expired |
| US4474239A | Sand placement | Fixed Constructions | 29 | Expired |
| US4076077A | Weight and pressure operated well testing apparatus and its method of operation | Fixed Constructions | 28 | Expired |
| USD381543S | Foam pad | General | 28 | Expired |
| US3969937A | Method and apparatus for testing wells | Fixed Constructions | 27 | Expired |
| US5172439A | Therapeutic mattress overlay and method of forming and using the same | Human Necessities | 27 | Expired |
| USD352858S | Anatomically conformable support pad | General | 22 | Expired |
| US5137088A | Travelling disc valve apparatus | Fixed Constructions | 21 | Expired |
| US5010609A | Anatomically conformable foam support pad | Human Necessities | 21 | Expired |
| US6003179A | Inclined anatomic support surface | Human Necessities | 20 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.