John Dunfield
18Patents
8h-index
27Co-inventors
72Inventor score
Filing activity: Mar 20, 1987 → Aug 31, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4793897A | Selective thin film etch process | Electricity | 291 | Expired |
| US8128606B2 | Ophthalmic apparatus and method for administering agents to the eye | Human Necessities | 85 | Active |
| US7338637B2 | Microfluidic device with thin-film electronic devices | Emerging Cross-Sectional Technologies | 66 | Expired |
| US6733464B2 | Multi-function sensor device and methods for its use | Human Necessities | 65 | Expired |
| US7651665B2 | Microtray for handling biosubstances | Emerging Cross-Sectional Technologies | 29 | Active |
| US7141386B2 | Cell culture device | Chemistry; Metallurgy | 24 | Expired |
| US6328405A | Printhead comprising multiple types of drop generators | Performing Operations; Transporting | 15 | Expired |
| US6903284B2 | Timed switch control for electric devices | Physics | 13 | Expired |
| US6946362B2 | Method and apparatus for forming high surface area material films and membranes | Emerging Cross-Sectional Technologies | 8 | Expired |
| US7741123B2 | Microfluidic device with thin-film electronic devices | Emerging Cross-Sectional Technologies | 8 | Active |
| US7578951B2 | Method of making microcapsules utilizing a fluid ejector | Emerging Cross-Sectional Technologies | 7 | Active |
| US7814324B2 | Method of making a patient monitor | Human Necessities | 6 | Active |
| US6607415B2 | Method for fabricating tiny field emitter tips | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6786591B2 | Fluid ejector apparatus and methods | Performing Operations; Transporting | 4 | Expired |
| US6648710B2 | Method for low-temperature sharpening of silicon-based field emitter tips | Electricity | 3 | Expired |
| US8532330B2 | Security printing analysis system and method for enhancing security printing | Physics | 1 | Active |
| US9687446B2 | Fluid-jet pens configured for making modulated release bioactive agents | Human Necessities | 0 | Active |
| US7132242B2 | Method and device for targeted delivery of materials to selected single cells | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.