Inventor
Klaus Dreyer
Inventor
Essen, DE
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C22Cprimary
C22CAlloys24%
Y10TTechnical subjects covered by former us classification24%
B22FWorking metallic powder21%
C23CCoating metallic material18%
B23BTurning5%
C04BLime, magnesia5%
C21DModifying the physical structure of ferrous metals3%
PatentTitleYear
7,544,410'Hard metal or cermet body and method for producing the same'20096,506,226'Hard metal or cermet body and method for producing the same'20036,293,986'Hard metal or cermet sintered body and method for the production thereof'20016,248,434'Composite body comprising a hard metal, cermet or ceramic substrate body and method of producing same'20016,228,484'Composite body, especially for a cutting tool'20016,224,968'Composite body, production process and use'20016,190,762'Composite body and method of producing the same'20016,110,603'Hard-metal or cermet body, especially for use as a cutting insert'20005,856,032'Cermet and process for producing it'19995,670,726'Cermet and method of producing it'19975,352,533'Ceramic composite body, process for producing a ceramic composite'19945,173,107'Composite hard metal body and process for its production'19924,284,687'Compound body'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981Patents assigned to KRUPP GMBH (1)· patent assignee history
1981–2009Based in Essen, DE· patent location history
1992–1994Patents assigned to KRUPP WIDIA GMBH (2)· patent assignee history
1997–2003Patents assigned to WIDIA GMBH (9)· patent assignee history
2009Patents assigned to KENNAMETAL WIDIA PROD GMBH (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WIDIA GMBH | 9 | 1997–2003 |
| KRUPP WIDIA GMBH | 2 | 1992–1994 |
| KENNAMETAL WIDIA PROD GMBH | 1 | 2009 |
| KRUPP GMBH | 1 | 1981 |
Locations
| Location | Patents | Span |
|---|---|---|
| Essen, DE | 13 | 1981–2009 |