D21H 5/2614
Detachment of the fibres from their compressed state
Official title: {Detachment of the fibres from their compressed state, e.g. by disintegration of a pulpboard (mechanical treatment of fibrous raw materials by dry methods D21B1/06)}
D21H5/2614 (Detachment of the fibres from their compressed state) appears on 3 US grants and 0 published applications in this corpus.
Search patents in D21H- Granted patents
- 3
- Published applications
- 0
- Assignees
- 1
- Inventors
- 5
- Latest grant
- 17 Mar 1987
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and apparatus for fiberizing fibrous sheets17 Mar 1987US 4,650,127 AKimberly-Clark Corporation
- Fiber separation from pulp sheet stacks30 Dec 1980US 4,241,881 AKimberly-Clark Corporation
- Apparatus for simultaneous defiberization of waste paper stock and uniform dispersion and accumulation of the defiberized fine fiber stock for dry web formation21 Jun 1977US 4,030,865 A
No published applications in this class yet.
Most cited
By later US patents
- Method and apparatus for fiberizing fibrous sheets38US 4,650,127 AKimberly-Clark Corporation · 1987
- Fiber separation from pulp sheet stacks28US 4,241,881 AKimberly-Clark Corporation · 1980
- Apparatus for simultaneous defiberization of waste paper stock and uniform dispersion and accumulation of the defiberized fine fiber stock for dry web formation23US 4,030,865 A1977