Engstrom; Keith A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Engstrom; Keith A..The latest application filed is for "method for producing opto-electronic circuit using laser-trimming device".
- Engstrom; Keith A. - Laguna Niguel CA
- Engstrom; Keith A. - So. Barrington IL
- Engstrom; Keith A. - Rolling Meadows IL
- Engstrom; Keith A. - Arlington Heights IL
- Engstrom; Keith A. - Chicago IL
- Engstrom; Keith A. - River Grove IL
| Patent | Date |
|---|---|
| Method for producing opto-electronic circuit using laser-trimming device Grant 5,446,259 - Engstrom August 29, 1 | 1995-08-29 |
| Enclosure for electrical data input apparatus Grant 4,611,406 - Engstrom , et al. September 16, 1 | 1986-09-16 |
| Force transducer Grant 4,479,392 - Froeb , et al. October 30, 1 | 1984-10-30 |
| Keyboard with electronic hysteresis Grant 4,390,866 - Engstrom June 28, 1 | 1983-06-28 |
| N-key rollover keyboard Grant 3,918,051 - Bernin , et al. November 4, 1 | 1975-11-04 |
| Solid State Switch Structure Grant 3,825,909 - Engstrom , et al. July 23, 1 | 1974-07-23 |
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