Inventor
Frederick L. Fitts
Inventor
Ann Arbor, MI, US
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B23Hprimary
B23HWorking of metal by the action of a high concentration of electric current on a workpiece using an electrode which takes the place of a tool43%
Y10TTechnical subjects covered by former us classification29%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling14%
G01BMeasuring length, thickness or similar linear dimensions14%
PatentTitleYear
4,928,517'Surface measuring instrument link arm assembly'19904,814,573'Electrical discharge machining apparatus with exchangeable electrode refeed cartridge'19894,739,145'System for positioning and transferring EDM electrodes'19884,670,635'Multi-electrode electrical discharge machining apparatus'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1989Patents assigned to EX CELL O CORP (3)· patent assignee history
1987–1990Based in Ann Arbor, MI, US· patent location history
1990Patents assigned to PRECISION DEVICES INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EX CELL O CORP | 3 | 1987–1989 |
| PRECISION DEVICES INC | 1 | 1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ann Arbor, MI, US | 4 | 1987–1990 |