B24B 19/09
For grinding trochoidal surfaces
Official title: for grinding trochoidal surfaces, e.g. in rotor housings of Wankel engines
B24B19/09 (For grinding trochoidal surfaces) appears on 8 US grants and 3 published applications in this corpus.
Search patents in B24B- Granted patents
- 8
- Published applications
- 3
- Assignees
- 6
- Inventors
- 11
- Latest grant
- 11 Aug 2015
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 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 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 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 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Stator of a gerotor device and a method for manufacturing roller pockets in a stator of a gerotor device11 Aug 2015US 9,103,211 B2White Drive Products, Inc.
- Finishing machine for trochoidal surfaces27 Aug 1991US 5,042,204 A
- Cam control grinding machine2 Nov 1982US 4,356,669 A
- Rotary engine housing manufacture18 Dec 1979US 4,178,725 ACaterpillar Tractor Co.
- Apparatus for improved control of a grinding machine1 Feb 1977US 4,005,552 ATri-Ordinate Corporation
- Thermal management of combustion engines25 May 2017US 2017/0145947 A1
- Improved thermal management of combustion engines6 Oct 2016US 2016/0290278 A1Fricso Ltd.
- Stator of a gerotor device and a method for manufacturing roller pockets in a stator of a gerotor device18 Jul 2013US 2013/0183182 A1White Drive Products, Inc.
Most cited
By later US patents
- Apparatus for improved control of a grinding machine16US 4,005,552 ATri-Ordinate Corporation · 1977
- Cam control grinding machine6US 4,356,669 A1982
- Rotary engine housing manufacture5US 4,178,725 ACaterpillar Tractor Co. · 1979
- Finishing machine for trochoidal surfaces4US 5,042,204 A1991
- Apparatus for profile grinding closed curved surface3US 3,943,665 AToshiba Kikai Kabushiki Kaisha · 1976