Timothy Strunk
31Patents
11h-index
33Co-inventors
75Inventor score
Filing activity: Mar 4, 1985 → Apr 11, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4744041A | Method for testing DC motors | Physics | 122 | Expired |
| US8814293B2 | On-chip fluid recirculation pump for micro-fluid applications | Performing Operations; Transporting | 27 | Active |
| US6871926B2 | Method of estimating an amount of available ink contained in an ink reservoir | Performing Operations; Transporting | 22 | Expired |
| US7280772B2 | Method for detecting whether a cartridge installed in an imaging apparatus is potentially counterfeit | Physics | 20 | Expired |
| US7788490B2 | Methods for authenticating an identity of an article in electrical communication with a verifier system | Electricity | 18 | Active |
| US6242883A | Variable speed three-phase motor drive with two inverter circuits | Electricity | 18 | Expired |
| US5406185A | Two-phase inverter drive for a three-phase motor | Electricity | 14 | Expired |
| US7585043B2 | Method of authenticating a consumable | Electricity | 13 | Expired |
| US7589850B2 | Licensing method for use with an imaging device | Physics | 13 | Expired |
| US7240995B2 | Method of authenticating a consumable | Electricity | 11 | Expired |
| US7258411B2 | Method of informing a user of end of life of a consumable for an ink jet printer | Performing Operations; Transporting | 11 | Expired |
| US7798594B2 | Method of authenticating a consumable | Electricity | 10 | Active |
| US7376627B2 | Method of licensing functionality after initial transaction | Physics | 10 | Expired |
| US7689513B2 | Method of licensing functionality after initial transaction | Physics | 10 | Active |
| US7369782B2 | Method and system for providing technical support relating to an imaging cartridge | Physics | 9 | Expired |
| US6962399B2 | Method of warning a user of end of life of a consumable for an ink jet printer | Performing Operations; Transporting | 7 | Expired |
| US9630419B2 | Maintenance valve for fluid ejection head | Performing Operations; Transporting | 5 | Active |
| US8459779B2 | Heater chips with silicon die bonded on silicon substrate, including offset wire bonding | Performing Operations; Transporting | 3 | Active |
| US6127791A | Electric drive system and method | Emerging Cross-Sectional Technologies | 3 | Expired |
| US8087756B2 | Heater chips with silicon die bonded on silicon substrate | Emerging Cross-Sectional Technologies | 3 | Active |
| US7938513B2 | Heater chips with silicon die bonded on silicon substrate and methods of fabricating the heater chips | Emerging Cross-Sectional Technologies | 2 | Active |
| US7629742B2 | Electroluminescent displays, media, and members, and methods associated therewith | Electricity | 2 | Active |
| US7959261B2 | Micro-fluid ejection devices having reduced input/output addressable heaters | Emerging Cross-Sectional Technologies | 1 | Active |
| US7922297B2 | Ink ejection device including a silicon chip having a heater stack positioned over a corresponding power transistor | Performing Operations; Transporting | 1 | Active |
| US8882221B2 | Modular micro-fluid ejection head assembly | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.