F04C 2250/10
Geometry: of the inlet or outlet
Official title: of the inlet or outlet
F04C2250/10 (Geometry: of the inlet or outlet) appears on 324 US grants and 318 published applications in this corpus.
Search patents in F04C- Granted patents
- 324
- Published applications
- 318
- Assignees
- 184
- Inventors
- 787
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 2 |
| 2003 | 3 | 3 |
| 2004 | 6 | 15 |
| 2005 | 4 | 8 |
| 2006 | 13 | 21 |
| 2007 | 4 | 9 |
| 2008 | 8 | 9 |
| 2009 | 6 | 6 |
| 2010 | 9 | 17 |
| 2011 | 8 | 19 |
| 2012 | 12 | 9 |
| 2013 | 10 | 10 |
| 2014 | 10 | 12 |
| 2015 | 12 | 15 |
| 2016 | 13 | 18 |
| 2017 | 13 | 9 |
| 2018 | 16 | 18 |
| 2019 | 11 | 23 |
| 2020 | 13 | 19 |
| 2021 | 18 | 13 |
| 2022 | 20 | 15 |
| 2023 | 11 | 12 |
| 2024 | 21 | 14 |
| 2025 | 12 | 10 |
| 2026 | 2 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Rotary piston compressor/pump/blower with a ventilation channel10 Feb 2026US 12,546,315 B2Gardner Denver Schopfheim GmbH
- Scroll compressor20 Jan 2026US 12,529,377 B2Kabushiki Kaisha Toyota Jidoshokki
- Rotary gear pump with a centered drive gear30 Dec 2025US 12,510,071 B2Advancing Pump Technology Corp.
- Compressor endplate9 Dec 2025US 12,492,700 B2Fujitsu General Limited
- Scroll compressor18 Nov 2025US 12,473,919 B2Mitsubishiki Electric Corporation
- Discharge Passages For Compressors and Compressors Including Same13 Aug 2026US 2026/0235126 A1
- Scroll pump6 Aug 2026US 2026/0226895 A1Edwards Limited
- Scroll compressor30 Jul 2026US 2026/0218704 A1
- Hermetic compressor and refrigeration cycle apparatus30 Jul 2026US 2026/0218707 A1Mitsubishi Electric Corporation
- Scroll compressor16 Jul 2026US 2026/0201884 A1Kabushiki Kaisha Toyota Jidoshokki
Most cited
By later US patents
- Scroll compressor with valved port for each compression chamber91US 4,818,195 AHitachi, Ltd. · 1989
- Scroll apparatus with reduced inlet pressure drop71US 5,314,316 AArthur D. Little, Inc. · 1994
- Controlled suction unloading in a scroll compressor64US 4,431,388 AThe Trane Company · 1984
- Scroll-type two stage positive fluid displacement apparatus56US 4,157,234 AIngersoll-Rand Company · 1979
- Scroll pump with axially spaced pumping chambers in series47US 4,650,405 ANippon Soken, Inc. · 1987