William T. Walker
48Patents
13h-index
39Co-inventors
81Inventor score
Filing activity: Apr 14, 1976 → Jan 9, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5129956A | Method and apparatus for the aqueous cleaning of populated printed circuit boards | Emerging Cross-Sectional Technologies | 49 | Expired |
| US7272500B1 | Global positioning system hardware key for software licenses | Physics | 42 | Expired |
| US7681245B2 | Remote feature activator feature extraction | Physics | 33 | Expired |
| US7747851B1 | Certificate distribution via license files | Electricity | 30 | Active |
| US8229858B1 | Generation of enterprise-wide licenses in a customer environment | Emerging Cross-Sectional Technologies | 29 | Active |
| US4640446A | Safety gas can with plural, nestable dispensing means | Performing Operations; Transporting | 28 | Expired |
| US4930657A | Floatable drain plug | Performing Operations; Transporting | 27 | Expired |
| US5159729A | Tie-down device for cargo and the like | Emerging Cross-Sectional Technologies | 24 | Expired |
| US7228567B2 | License file serial number tracking | Physics | 23 | Expired |
| US7216363B2 | Licensing duplicated systems | Physics | 22 | Expired |
| US7373657B2 | Method and apparatus for controlling data and software access | Electricity | 21 | Expired |
| US8678068B1 | Bracket and spine mounted cornice and method of use | Human Necessities | 20 | Active |
| US9262150B2 | Services versioning | Electricity | 14 | Active |
| US6390007B1 | Drain plug system for a boat | Performing Operations; Transporting | 11 | Expired |
| US7698225B2 | License modes in call processing | Physics | 10 | Expired |
| US9116772B2 | Dynamic customization of pluggable service by users | Electricity | 10 | Active |
| US7844572B2 | Remote feature activator feature extraction | Physics | 9 | Active |
| US8789209B2 | Enterprise license registrar anchor point | Physics | 9 | Active |
| US7707116B2 | Flexible license file feature controls | Electricity | 9 | Active |
| US8620819B2 | Remote feature activator feature extraction | Physics | 8 | Active |
| US7127442B2 | Ironclad notification of license errors | Physics | 8 | Expired |
| US7890997B2 | Remote feature activation authentication file system | Physics | 8 | Expired |
| US9690559B2 | Downloadable pluggable services | Physics | 5 | Active |
| US4752019A | Combined dispensing head and level gauge | Physics | 5 | Expired |
| US6672761B2 | X-ray system | Electricity | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.