F22B 37/106
Studding of tubes
Official title: {Studding of tubes}
F22B37/106 (Studding of tubes) appears on 7 US grants and 2 published applications in this corpus.
Search patents in F22B- Granted patents
- 7
- Published applications
- 2
- Assignees
- 5
- Inventors
- 23
- Latest grant
- 2 Apr 2002
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Partially studded radiant tubes2 Apr 2002US 6,364,658 B1
- Studs for boilers and other high temperature applications8 Apr 1997US 5,618,491 ATRW Inc.
- Water tube boiler28 Dec 1993US 5,273,002 AGadelius Sunrod AB
- Composite studs, pulp mill recovery boiler including composite studs and method for protecting boiler tubes28 Apr 1992US 5,107,798 ASage of America, Inc.
- Fluidized bed having modified surfaces in the heat extractor29 Dec 1987US 4,715,809 ARuhrkohle Aktiengesellschaft
Most cited
By later US patents
- Studs for boilers and other high temperature applications19US 5,618,491 ATRW Inc. · 1997
- Composite studs, pulp mill recovery boiler including composite studs and method for protecting boiler tubes15US 5,107,798 ASage of America, Inc. · 1992
- Fluidized bed having modified surfaces in the heat extractor14US 4,715,809 ARuhrkohle Aktiengesellschaft · 1987
- Erosion resistant waterwall9US 4,554,967 AFoster Wheeler Energy Corporation · 1985
- Partially studded radiant tubes7US 6,364,658 B12002