E21C 49/00
Obtaining peat
Official title: Obtaining peat; Machines therefor (treating peat C10F)
E21C49/00 (Obtaining peat) appears on 10 US grants and 4 published applications in this corpus.
Search patents in E21C- Granted patents
- 10
- Published applications
- 4
- Assignees
- 10
- Inventors
- 18
- Latest grant
- 16 Apr 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Tailing deposit tool16 Apr 2019US 10,260,344 B2IHC Holland IE B.V.
- Mechanical demoisturizing of partially-decomposed organic material11 Sep 2018US 10,072,214 B1American Peat Technology, LLC
- Peat moss harvesting apparatus and method15 Jan 2013US 8,353,118 B2NCL Holding Inc.
- Method and apparatus for harvesting and dewatering peat moss material26 Dec 1995US 5,477,627 AJohnson & Johnson
- Peat harvester with automatically adjustable suction heads19 Apr 1988US 4,738,036 A
- Peat moss processing apparatuses and methods23 May 2019US 2019/0153861 A1670988 Nb Inc.
- Tailing deposit tool16 Jun 2016US 2016/0168992 A1IHC Holland IE B.V.
- Belt assembly for conveyor mechanism of a peat moss harvesting apparatus19 Dec 2013US 2013/0333253 A1NCL Holding Inc.
- Peat moss harvesting apparatus and method7 Jun 2012US 2012/0137546 A1NCL Holding Inc.
Most cited
By later US patents
- Method and apparatus for harvesting and dewatering peat moss material8US 5,477,627 AJohnson & Johnson · 1995
- Apparatus for harvesting peat6US 4,495,716 ABallintubber Enterprises Limited · 1985
- Peat harvester with automatically adjustable suction heads4US 4,738,036 A1988
- Lump peat machine3US 4,192,088 AKemi Oy · 1980
- Peat machine3US 4,468,872 AKortteen Konepaja G. Korte & Kni · 1984