Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5665127 | Process for producing sintered .alpha.-Al.sub.2 O.sub.3 bodies and their use | Pirmin Wilhelm, Josef Schmoll | 1997-09-09 |
| 5525135 | Abrasive material based on zirconium corundum a process for its production and its use | Wolfgang Gallmann | 1996-06-11 |
| 5478510 | Process for producing homogeneous structure abrasives | Martin Lutte, Karlheinz Glaisner, Herbert Siebold | 1995-12-26 |
| 5256611 | Colored corundum composite and processes for its production and its use | Gerhard Winter | 1993-10-26 |
| 5194073 | Sintered composite abrasive materials, a process for its production and its use | Gerhard Winter, Dietmar Fister | 1993-03-16 |