D21H 5/1254
Of fibres which have been treated to improve their dispersion in the
Official title: {of fibres which have been treated to improve their dispersion in the paper-making furnish}
D21H5/1254 (Of fibres which have been treated to improve their dispersion in the) appears on 23 US grants and 0 published applications in this corpus.
Search patents in D21H- Granted patents
- 23
- Published applications
- 0
- Assignees
- 15
- Inventors
- 26
- Latest grant
- 15 Aug 1989
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 7 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Staple fiber, finish therefor and process for use of same15 Aug 1989US 4,857,148 AHoechst Fibers Industries
- Cake of synthetic fibrid9 Feb 1988US 4,724,046 ATeijin Limited
- Staple fiber, finish therefor and process for use of same13 Oct 1981US 4,294,883 AHoechst Fibers Industries, Div. of American Hoechst Corporation
- High-strength roofing products using novel glass fiber mats18 Aug 1981US 4,284,470 AGAF Corporation
- Dimensionally stable backing materials for surface coverings and methods of making the same23 Jun 1981US 4,274,916 ACongoleum Corporation
No published applications in this class yet.
Most cited
By later US patents
- High-strength roofing products using novel glass fiber mats26US 4,284,470 AGAF Corporation · 1981
- Dimensionally stable backing materials for surface coverings and methods of making the same23US 4,274,916 ACongoleum Corporation · 1981
- Method of producing glass mats21US 4,052,257 AOwens-Corning Fiberglas Corporation · 1977
- Staple fiber, finish therefor and process for use of same21US 4,294,883 AHoechst Fibers Industries, Div. of American Hoechst Corporation · 1981
- Conditioning of polyolefinic fibers for use in the manufacture of synthetic paper19US 4,002,796 AMontedison Fibre S.p.A. · 1977