Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5089681 | Electro-discharge machining apparatus | — | 1992-02-18 |
| 4992639 | Combined EDM and ultrasonic drilling | James Watkins | 1991-02-12 |
| 4950860 | Electro-discharge machining apparatus | — | 1990-08-21 |
| 4443680 | Methods and apparatus for electrical discharge machining | Sushantha K. Bhattacharyya | 1984-04-17 |
| 4392110 | Methods and apparatus for monitoring the condition of dielectric liquid in electric discharge machining | Peter A. Woodrow, Sushantha K. Bhattacharyya | 1983-07-05 |
| 4348573 | Methods and apparatus for electrical discharge machining | Peter A. Woodrow, Sushantha K. Bhattacharyya | 1982-09-07 |
| 4346278 | Methods and apparatus for electrical discharge machining | Sushantha K. Bhattacharyya | 1982-08-24 |