Issued Patents All Time
Showing 201–212 of 212 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5477975 | Plasma etch apparatus with heated scavenging surfaces | Jeffrey Marks, David W. Groechel, Nicolas Bright | 1995-12-26 |
| 5437757 | Clamp ring for domed pedestal in wafer processing chamber | Jon Mohn | 1995-08-01 |
| 5319701 | Method and apparatus for performing an automated collect call | John A. Hird, Lindsey D. Owen | 1994-06-07 |
| 5131027 | Short time validity storage | John A. Hird, Lindsey D. Owen | 1992-07-14 |
| 5113433 | Method and apparatus for altering the access format of telephone calls | John A. Hird, Lindsey D. Owen | 1992-05-12 |
| 5093858 | Method and apparatus for performing an automated collect call | John A. Hird, Lindsey D. Owen | 1992-03-03 |
| 4933965 | Short time validity storage of a billing account number at a local telecommunications station | John A. Hird, Lindsey D. Owen | 1990-06-12 |
| 4933966 | Method and apparatus for performing an automated collect call | John A. Hird, Lindsey D. Owen | 1990-06-12 |
| 4920558 | Method and apparatus for downloading speech files | John A. Hird, Lindsey D. Owen | 1990-04-24 |
| 4920562 | Automatic generation of billing records at a telephone paystation | John A. Hird, Lindsey D. Owen | 1990-04-24 |
| 4908852 | Method and apparatus for altering the access format of telephone calls | John A. Hird, Lindsey D. Owen | 1990-03-13 |
| 4890317 | Automatic validation of telephone account numbers | John A. Hird, Lindsey D. Owen | 1989-12-26 |