F02B 23/0621
Squish flow
Official title: {Squish flow}
F02B23/0621 (Squish flow) appears on 168 US grants and 101 published applications in this corpus.
Search patents in F02B- Granted patents
- 168
- Published applications
- 101
- Assignees
- 85
- Inventors
- 350
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 8 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 8 | 0 |
| 2001 | 7 | 3 |
| 2002 | 2 | 5 |
| 2003 | 10 | 5 |
| 2004 | 7 | 9 |
| 2005 | 6 | 7 |
| 2006 | 5 | 4 |
| 2007 | 4 | 6 |
| 2008 | 6 | 1 |
| 2009 | 4 | 3 |
| 2010 | 0 | 4 |
| 2011 | 3 | 4 |
| 2012 | 1 | 5 |
| 2013 | 2 | 3 |
| 2014 | 4 | 5 |
| 2015 | 4 | 6 |
| 2016 | 7 | 6 |
| 2017 | 5 | 4 |
| 2018 | 4 | 2 |
| 2019 | 4 | 4 |
| 2020 | 6 | 7 |
| 2021 | 4 | 3 |
| 2022 | 4 | 0 |
| 2023 | 1 | 2 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Piston with combustion stabilizing bowl4 Aug 2026US 12,698,734 B2Caterpillar Inc.
- Low compression natural gas engine piston bowl for improved combustion stability1 Apr 2025US 12,264,636 B2Caterpillar Inc.
- Low compression natural gas engine piston bowl for improved combustion stability12 Dec 2023US 11,840,983 B2Caterpillar Inc.
- Method for operating an internal combustion engine for a motor vehicle, and internal combustion engine for a motor vehicle27 Sep 2022US 11,454,191 B2Daimler AG
- Piston bowl geometry, cuff and top land interaction for reduced hydrocarbons, improved combustion efficiency, and piston temperature30 Aug 2022US 11,428,189 B1Caterpillar Inc.
- Piston for reciprocating within a cylinder in an internal combustion engine18 Jun 2026US 2026/0168460 A1Cummins Inc.
- Piston with combustion stabilizing bowl25 Sep 2025US 2025/0297569 A1Caterpillar Inc.
- Low compression natural gas engine piston bowl for improved combustion stability21 Mar 2024US 2024/0093659 A1Caterpillar Inc.
- Low compression natural gas engine piston bowl for improved combustion stability24 Aug 2023US 2023/0265810 A1Caterpillar Inc.
- Engine system and operating method using matched fuel injector and piston for optimized spray jet interaction with combustion bowl2 Mar 2023US 2023/0065121 A1Caterpillar Inc.
Most cited
By later US patents
- Combustion system for direct injection diesel engines95US 6,553,960 B1Yanmar Co., Ltd. · 2003
- Method and apparatus for dual fuel injection into an internal combustion engine93US 6,202,601 B1Westport Research Inc. · 2001
- Combustion engine71US 6,213,086 B1AVL List GmbH · 2001
- Intensifier-injector for gaseous fuel for positive displacement engines67US 5,315,973 AThe University of British Columbia · 1994
- Direct injection type internal combustion engine55US 6,799,551 B2Kabushiki Kaisha Toyota Chuo Kenkyusho · 2004