E01C 21/02
Fusing, calcining, or burning soil in situ
Official title: Fusing, calcining, or burning soil in situ {(improving soil by thermal means in general E02D3/11; devices for heating foundation or paving E01C23/14)}
E01C21/02 (Fusing, calcining, or burning soil in situ) appears on 4 US grants and 1 published applications in this corpus.
Search patents in E01C- Granted patents
- 4
- Published applications
- 1
- Assignees
- 4
- Inventors
- 12
- Latest grant
- 25 May 2010
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Apparatus for in-situ microwave consolidation of planetary materials containing nano-sized metallic iron particles25 May 2010US 7,723,654 B2Northrop Grumman Systems Corporation
- Installation for thermal treatment of suspended powder substances, and use for flash calcining of mineral, in particular clayey, substances2 Jan 2001US 6,168,424 ADemeter Technologies
- Thermal plasma conversion of local soils into construction materials27 Oct 1998US 5,827,012 A
- Soil amendment with rubber particles14 May 1991US 5,014,462 AInternational Soil Systems, Inc.
Most cited
By later US patents
- Soil amendment with rubber particles39US 5,014,462 AInternational Soil Systems, Inc. · 1991
- Apparatus for in-situ microwave consolidation of planetary materials containing nano-sized metallic iron particles8US 7,723,654 B2Northrop Grumman Systems Corporation · 2010
- Thermal plasma conversion of local soils into construction materials6US 5,827,012 A1998
- Installation for thermal treatment of suspended powder substances, and use for flash calcining of mineral, in particular clayey, substances3US 6,168,424 ADemeter Technologies · 2001