D21G 1/0273
On the exterior surface of the rolls
Official title: {on the exterior surface of the rolls}
D21G1/0273 (On the exterior surface of the rolls) appears on 11 US grants and 3 published applications in this corpus.
Search patents in D21G- Granted patents
- 11
- Published applications
- 3
- Assignees
- 10
- Inventors
- 12
- Latest grant
- 12 May 2009
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and apparatus for heating a roller12 May 2009US 7,531,063 B2Voith Patent GmbH
- Process control methods and apparatus28 Sep 2004US 6,799,082 B2Yokogawa Electric Corporation
- Air heating and control system8 Aug 2000US 6,098,311 AImpact Systems, Inc.
- Gloss control system using air jets14 Dec 1999US 6,000,328 AImpact Systems, Inc.
- Enhanced cross-directional caliper control system28 Apr 1998US 5,743,177 AUnion Camp Corporation
Most cited
By later US patents
- Hot air calender roll controller44US 4,768,433 AMeasurex Corporation · 1988
- Enhanced cross-directional caliper control system22US 5,743,177 AUnion Camp Corporation · 1998
- Hot air calender roll controller8US 4,685,389 AMeasurex Corporation · 1987
- Caliper control system6US 4,867,054 AThermo Electron Web Systems, Inc. · 1989
- Method and apparatus for throttle valve control of a calender roll actuator2US 5,611,396 AABB Industrial Systems, Inc. · 1997