Inventor
Johannes Kolaska
Inventor
Bottrop, DE
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C23Cprimary
C23CCoating metallic material27%
Y10TTechnical subjects covered by former us classification20%
B22FWorking metallic powder13%
B23BTurning13%
C22CAlloys13%
B23PMetal-working not otherwise provided for7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
PatentTitleYear
4,684,405'Sintered tungsten carbide material and manufacturing method'19874,284,687'Compound body'19814,276,096'Method for producing hard metal bodies of increased wear resistance'19813,999,954'Hard metal body and its method of manufacture'19763,999,953'Molded articles made of a hard metal body and their method of production'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1987Patents assigned to KRUPP GMBH (5)· patent assignee history
1976–1987Based in Bottrop, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KRUPP GMBH | 5 | 1976–1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bottrop, DE | 5 | 1976–1987 |