Douglas M. Petty
27Patents
8h-index
33Co-inventors
75Inventor score
Filing activity: Apr 17, 1989 → Jun 23, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6033398A | Method and apparatus for treating venous insufficiency using directionally applied energy | Human Necessities | 301 | Expired |
| US6769433B2 | Expandable vein ligator catheter having multiple electrode leads, and method | Human Necessities | 126 | Expired |
| US7406970B2 | Method of using expandable vein ligator catheter having multiple electrode leads | Human Necessities | 126 | Expired |
| US6200312A | Expandable vein ligator catheter having multiple electrode leads | Human Necessities | 98 | Expired |
| US5420492A | Method and apparatus of operating a dynamoelectric machine using DC bus current profile | Emerging Cross-Sectional Technologies | 57 | Expired |
| US6237606A | Method of applying energy to tissue with expandable ligator catheter having multiple electrode leads | Human Necessities | 48 | Expired |
| US6981972B1 | Apparatus for treating venous insufficiency using directionally applied energy | Human Necessities | 38 | Expired |
| US5070565A | Unbalanced load detection system and method for a household appliance | Textiles; Paper | 22 | Expired |
| US8291915B2 | Method and apparatus for treating venous insufficiency using directionally applied energy | Human Necessities | 8 | Active |
| US7305555B2 | Smart card mating protocol | Electricity | 6 | Expired |
| US5595277A | Coin payout method and control means | Physics | 4 | Expired |
| USD793280S1 | Racecar bobble novelty | General | 4 | Active |
| US7929483B2 | Method and apparatus for providing a secure system time | Electricity | 3 | Active |
| US7314448B2 | Imaging transducer assembly | Human Necessities | 2 | Expired |
| US7976536B2 | Method and apparatus for treating venous insufficiency | Human Necessities | 2 | Active |
| US9930390B2 | Control word and associated entitlement control message caching and reuse | Electricity | 1 | Active |
| US8792637B2 | Downloading of data to secure devices | Electricity | 1 | Active |
| US9553725B2 | System and method for authenticating data | Electricity | 1 | Active |
| US8156560B2 | Method and apparatus for providing a border guard between security domains | Electricity | 1 | Active |
| US11025424B2 | Entitlement management message epoch as an external trusted time source | Electricity | 1 | Active |
| US10944579B2 | Device pairing and authentication | Electricity | 0 | Active |
| US11677548B2 | Secure distribution of device key sets over a network | Electricity | 0 | Active |
| US8679110B2 | Expandable vein ligator catheter having multiple electrode leads, and method | Human Necessities | 0 | Active |
| US11063753B2 | Secure distribution of device key sets over a network | Electricity | 0 | Active |
| US11115201B2 | Downloading of data to secure devices | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.