Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6388861 | Electrostatic wafer clamp | — | 2002-05-14 |
| 5452177 | Electrostatic wafer clamp | — | 1995-09-19 |
| 4634921 | Thermionic cathode heater | Kenneth E. Williams, Kenneth Hall | 1987-01-06 |
| 4446373 | Process and apparatus for converged fine line electron beam treatment objects | A. Stuart Denholm, Kenneth E. Williams | 1984-05-01 |
| 4382186 | Process and apparatus for converged fine line electron beam treatment of objects | A. Stuart Denholm, Kenneth E. Williams | 1983-05-03 |