D21H 5/005
Involving several different techniques of application
Official title: {involving several different techniques of application (treatments in which the characteristics of a single treatment are of interest only, or in which all treatments have characteristics provided for in a single sub-group, see the relevant sub-groups for the single treatment; several superposed coatings D21H19/82; apparatus for making multi-ply material D21H1/06)}
D21H5/005 (Involving several different techniques of application) appears on 8 US grants and 1 published applications in this corpus.
Search patents in D21H- Granted patents
- 8
- Published applications
- 1
- Assignees
- 7
- Inventors
- 18
- Latest grant
- 18 Apr 1989
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
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| 1987 | 2 | 0 |
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| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Coater18 Apr 1989US 4,822,640 AOy Wartsila Ab
- Device for coating traveling material20 Oct 1987US 4,700,658 AJ. M. Voith GmbH
- Process and apparatus for coating paper14 Apr 1987US 4,657,783 AThe Wiggins Teape Group Limited
- Size press8 Nov 1983US 4,413,586 AJ. M. Voith GmbH
- Twin short dwell coater arrangement2 Nov 1982US 4,357,370 ABeloit Corporation
Most cited
By later US patents
- Twin short dwell coater arrangement39US 4,357,370 ABeloit Corporation · 1982
- Two sided coater35US 4,354,449 AThe Black Clawson Company · 1982
- Coater22US 4,822,640 AOy Wartsila Ab · 1989
- Process and apparatus for coating paper16US 4,657,783 AThe Wiggins Teape Group Limited · 1987
- Selectively convertible apparatus for treating a moving web14US 4,259,921 AInventing S.A. · 1981