F04C 2/102
The two members rotating simultaneously around their respective axes
Official title: {the two members rotating simultaneously around their respective axes}
F04C2/102 (The two members rotating simultaneously around their respective axes) appears on 688 US grants and 756 published applications in this corpus.
Search patents in F04C- Granted patents
- 688
- Published applications
- 756
- Assignees
- 310
- Inventors
- 1,328
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 10 | 0 |
| 1993 | 8 | 0 |
| 1994 | 4 | 0 |
| 1995 | 8 | 0 |
| 1996 | 7 | 0 |
| 1997 | 6 | 0 |
| 1998 | 12 | 0 |
| 1999 | 6 | 0 |
| 2000 | 15 | 0 |
| 2001 | 17 | 3 |
| 2002 | 13 | 13 |
| 2003 | 17 | 17 |
| 2004 | 12 | 23 |
| 2005 | 9 | 23 |
| 2006 | 10 | 31 |
| 2007 | 14 | 16 |
| 2008 | 17 | 24 |
| 2009 | 13 | 24 |
| 2010 | 19 | 18 |
| 2011 | 13 | 13 |
| 2012 | 15 | 18 |
| 2013 | 15 | 30 |
| 2014 | 22 | 36 |
| 2015 | 20 | 45 |
| 2016 | 29 | 49 |
| 2017 | 31 | 37 |
| 2018 | 32 | 51 |
| 2019 | 39 | 47 |
| 2020 | 32 | 48 |
| 2021 | 41 | 33 |
| 2022 | 36 | 40 |
| 2023 | 35 | 34 |
| 2024 | 38 | 38 |
| 2025 | 32 | 29 |
| 2026 | 21 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process pump with dynamic seal for dry run capability6 Oct 2026US 12,753,757 B2Viking Pump, Inc.
- Pump6 Oct 2026US 12,753,759 B2LG Innotek Co., Ltd.
- Dual oil pump with centrifugal shifter6 Oct 2026US 12,753,804 B1Schaeffler Technologies AG & Co. KG
- Thermistor flow path8 Sep 2026US 12,729,681 B2GHSP, Inc.
- In-situ serviceable gear pump11 Aug 2026US 12,704,125 B1Ace Machine Design Inc.
- Electric oil pump, housing body portion, and pump cover1 Oct 2026US 2026/0298227 A1Nidec Powertrain Systems Corporation
- Thermistor flow path10 Sep 2026US 2026/0266285 A1GHSP, Inc.
- Thermistor flow path13 Aug 2026US 2026/0235120 A1GHSP, Inc.
- Motor and pump comprising same13 Aug 2026US 2026/0238067 A1LG Innotek Co., Ltd.
- Gear pump parallel load path30 Jul 2026US 2026/0218702 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Brushless coolant pump and cooling system73US 6,447,270 B1Isothermal Systems Research, Inc. · 2002
- Vehicle drivetrain hydraulic coupling70US 5,310,388 AASHA Corporation · 1994
- Variable displacement gerotor pump58US 4,492,539 A1985
- Dual pump unit55US 6,361,282 B1Brueninghaus Hydromatik GmbH · 2002
- Hydraulic coupling for vehicle drivetrain54US 5,595,214 AASHA Corporation · 1997