Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6077466 | Precipitated silica | Gerold Schmidt, Mustafa Siray, Karl Meier | 2000-06-20 |
| 5851502 | Precipitated silica | Gerold Schmidt, Mustafa Siray, Karl Meier | 1998-12-22 |
| 4857289 | Process for preparing precipitated silica | Peter Nauroth, Robert Kuhlmann, Adam Becker | 1989-08-15 |
| 4495167 | Precipitated silicas having high structure and process for their preparation | Peter Nauroth, Heinz Esch | 1985-01-22 |
| 4430280 | Process for the production of mixed granulate from carbon black and light filler | Alfons Kreher, Gerhard Kuhner, Lothar Rothbuhr, Siegfried Wolff | 1984-02-07 |
| 4406817 | Process for the production of sedimentation stable anti-foam agents | Karl-Hans Muller, Roland Tailfer | 1983-09-27 |
| 4310496 | Process for converting silicon dioxide containing waste flue dust to crystalline zeolitic molecular sieves of type A | Karl-Joerg Achenbach | 1982-01-12 |
| 4308074 | Precipitated silicic acid, method and compositions containing same | Peter Nauroth, Heinz Esch, Robert Kuhlmann, Rudolf Bode, Arthur Reisert +1 more | 1981-12-29 |
| 4289681 | Boron containing precipitated silica | Peter Nauroth, Robert Kuhlmann | 1981-09-15 |
| 4250081 | Thermoplastic mixtures for the production of synthetic resin films with antiblocking properties comprising a thermoplastic synthetic resin and a pulverulent zeolite | Rudolf Bode, Arthur Reisert, Hans Strack | 1981-02-10 |
| 4226837 | Process for converting silicon dioxide containing waste flue dust to crystalline zeolitic molecular sieves of type Y with a Faujasite structure | Karl-Joerg Achenbach | 1980-10-07 |
| 4208316 | Hydrophobic precipitated silicic acid and compositions containing same | Peter Nauroth, Heinz Esch, Robert Kuhlmann, Rudolf Bode, Arthur Reisert +1 more | 1980-06-17 |
| 4190632 | Process for treating air-borne (metallic) dusts containing silicon dioxide to form precipitated silicic acids and silicates | Karl-Joerg Achenbach | 1980-02-26 |