Inventor
John W. Friederichs
Inventor
West Branch, MI, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C22Cprimary
C22CAlloys33%
B22FWorking metallic powder17%
B23PMetal-working not otherwise provided for17%
Y10TTechnical subjects covered by former us classification17%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material8%
B23BTurning8%
PatentTitleYear
5,918,102'Articles of ultra fine grained cemented carbide and process for making same'19995,368,628'Articles of ultra fine grained cemented carbide and process for making same'19945,338,506'Process for making non-magnetic nickel tungsten carbide cemented carbide compositions and articles made from the same'19945,273,571'Nonmagnetic nickel tungsten cemented carbide compositions and articles made from the same'19935,123,788'Cutting insert with raised cutting edge'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992Patents assigned to GTE VALENITE CORP (1)· patent assignee history
1992–1999Based in West Branch, MI, US· patent location history
1993–1999Patents assigned to VALENITE INC (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| VALENITE INC | 4 | 1993–1999 |
| GTE VALENITE CORP | 1 | 1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| West Branch, MI, US | 5 | 1992–1999 |