Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6803534 | Membrane for micro-electro-mechanical switch, and methods of making and using it | Shea Chen, Brandon W. Pillans, John Charles Ehmke | 2004-10-12 |
| 6700172 | Method and apparatus for switching high frequency signals | John Charles Ehmke, Charles L. Goldsmith, Susan M. Eshelman | 2004-03-02 |