Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4633228 | Entry error elimination for data systems | — | 1986-12-30 |
| 4559426 | Membrane switch and components having means for preventing creep | Anthony J. Van Zeeland, David Christensen | 1985-12-17 |
| 4433223 | Pressure-sensitive adhesive and application thereof | Anthony J. Van Zeeland | 1984-02-21 |
| 4420663 | Material for electrical devices having a flexible member | Edwina K. Dulen | 1983-12-13 |
| 4418239 | Flexible connector with interconnection between conductive traces | Anthony J. Van Zeeland | 1983-11-29 |
| 4417114 | Connector for attaching an electrical component to a flat sheet | — | 1983-11-22 |
| 4403272 | Membrane switch interconnect tail and printed circuit board connection | David Christensen, Anthony J. VanZeeland | 1983-09-06 |
| RE31332 | Membrane switch with means for preventing contamination of the interior thereof | — | 1983-08-02 |
| 4394547 | Laminated membrane switch | — | 1983-07-19 |
| 4385213 | Switch and component attachment to flexible printed circuitry | — | 1983-05-24 |
| 4367380 | Keyboard assembly and components therefor | Herbert C. Naylor | 1983-01-04 |
| 4320573 | Method of manufacture for bendable membrane switch | — | 1982-03-23 |
| 4320272 | Connector for attaching an electrical component to a flat sheet | — | 1982-03-16 |
| 4317013 | Membrane switch with universal spacer means | — | 1982-02-23 |
| 4314114 | Laminated membrane switch | — | 1982-02-02 |
| 4307275 | Membrane switch construction and method for making same | Philip Bierhuizen, Anthony J. Van Zeeland | 1981-12-22 |
| 4251683 | Interconnect tail for a membrane switch | Ray L. Oughton, Jr. | 1981-02-17 |
| 4249044 | Membrane switch with means for preventing contamination of the interior thereof | — | 1981-02-03 |
| 4243852 | Membrane switch with means for impeding silver migration | — | 1981-01-06 |
| 4237358 | Isolation membrane switch | Steven D. Vannice, Joseph Jesson | 1980-12-02 |