F05B 2250/191
Perforated
Official title: perforated
F05B2250/191 (Perforated) appears on 6 US grants and 3 published applications in this corpus.
Search patents in F05B- Granted patents
- 6
- Published applications
- 3
- Assignees
- 7
- Inventors
- 24
- Latest grant
- 27 Jun 2023
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 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 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 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 2 |
| 2023 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Convex type guide plate waterwheel energy increasing device with gradually dense holes27 Jun 2023US 11,686,283 B2Hohai University
- Offshore oscillating water column wave energy conversion device with external permeable structure21 Feb 2023US 11,585,315 B2Dalian University of Technology
- Compact high-pressure exhaust muffling devices30 Apr 2013US 8,430,202 B1General Electric Company
- Horizontal axis wind turbine29 Apr 2008US 7,365,447 B2Fuji Jukogyo Kabushiki Kaisha
- Annular combustion chamber with a perforated wall3 Feb 1998US 5,713,207 ASociete National d'Etude et de Construction de Moteurs d'Aviation "S.N.E.C.M.A."
- Offshore Oscillating Water Column Wave Energy Conversion Device With External Permeable Structure26 May 2022US 2022/0162986 A1Dalian University of Technology
- Convex type guide plate waterwheel energy increasing device with gradually dense holes6 Jan 2022US 2022/0003198 A1Hohai University
- Horizontal axis wind turbine28 Dec 2006US 2006/0290140 A1Fuji Jukogyo Kabushiki Kaisha
Most cited
By later US patents
- Perforated laminated material41US 4,168,348 AROLLS-ROYCE plc · 1979
- Compact high-pressure exhaust muffling devices20US 8,430,202 B1General Electric Company · 2013
- Horizontal axis wind turbine17US 7,365,447 B2Fuji Jukogyo Kabushiki Kaisha · 2008
- Annular combustion chamber with a perforated wall4US 5,713,207 ASociete National d'Etude et de Construction de Moteurs d'Aviation "S.N.E.C.M.A." · 1998
- Offshore oscillating water column wave energy conversion device with external permeable structure1US 11,585,315 B2Dalian University of Technology · 2023