C04B 20/08
Defibrillating asbestos
Official title: Defibrillating asbestos {(defibrillating other fibres C04B20/026)}
C04B20/08 (Defibrillating asbestos) appears on 9 US grants and 0 published applications in this corpus.
Search patents in C04B- Granted patents
- 9
- Published applications
- 0
- Assignees
- 6
- Inventors
- 20
- Latest grant
- 7 Apr 1992
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Apparatus and process for disintegrating a fiber agglomerate7 Apr 1992US 5,102,055 ADidier-Werke AG
- Apparatus for separating fiber from fiber aggregate23 Aug 1988US 4,765,547 AKawasaki Steel Corporation
- Asbestos process27 May 1986US 4,591,103 AICI Australia Limited
- Method of preparation of an asbestos product1 Sep 1981US 4,287,020 A
- Chemical processes9 Jun 1981US 4,272,495 AWoodsreef Mines Limited
No published applications in this class yet.
Most cited
By later US patents
- Process of separating asbestos fibers and product thereof24US 4,226,672 AICI Australia Limited · 1980
- Chemically opening chrysotile asbestos and encapsulating23US 3,965,284 ACanadian Patents and Development Limited · 1976
- Apparatus and process for disintegrating a fiber agglomerate18US 5,102,055 ADidier-Werke AG · 1992
- Cementitious composition containing asbestos fibres and prepared using a surfactant13US 4,190,456 AICI Australia Limited · 1980
- Method of preparation of an asbestos product8US 4,287,020 A1981