F26B 11/0413
The subdivision consisting of concentric walls
Official title: {the subdivision consisting of concentric walls, e.g. multi-pass or recirculation systems; the subdivision consisting of spiral-shaped walls (tubular or annular passages for supply or exhaust of drying gas F26B11/028)}
F26B11/0413 (The subdivision consisting of concentric walls) appears on 29 US grants and 6 published applications in this corpus.
Search patents in F26B- Granted patents
- 29
- Published applications
- 6
- Assignees
- 16
- Inventors
- 30
- Latest grant
- 28 Jan 2014
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for utilizing organic waste materials28 Jan 2014US 8,636,840 B2Holcim Technology Ltd
- Moist organic product drying system having a rotary waste heat evaporator3 Aug 2010US 7,765,714 B2Aeroglide Corporation
- Rotary impinging stream dryer2 Jan 2007US 7,155,841 B2Earth Care Products, Inc.
- Particulate drying system26 Jun 2001US 6,249,988 B1Wyoming Sawmills, Inc.
- Energy recuperative soil remediation system19 Aug 1997US 5,658,094 ACedarapids, Inc.
- Apparatus and method for processing municipal waste into bio-ethanol30 Jul 2015US 2015/0210927 A1Energy From Waste Ltd.
- Method and machine for drying materials7 May 2015US 2015/0121717 A1Deantec GmbH
- Process for utilizing organic waste materials20 Jun 2013US 2013/0152826 A1Holcim Technology Ltd
- Moist organic product drying system having a rotary waste heat evaporator25 Sep 2008US 2008/0229610 A1Ronning Engineering Company, Inc.
- Rotary impinging stream dryer28 Sep 2006US 2006/0213075 A1Earth Care Products, Inc.
Most cited
By later US patents
- Method and apparatus for drying bagasse32US 4,376,343 A1983
- Radiant heat rotary volatilizer29US 5,088,856 ASoils, Inc. · 1992
- Multi purpose three pass drum dryer18US 4,477,984 A1984
- Particulate drying system17US 6,249,988 B1Wyoming Sawmills, Inc. · 2001
- Continuous grain drier and method15US 4,038,021 A1977