F04C 2/063
With coaxially-mounted members having continuously-changing circumferential spacing between them
Official title: with coaxially-mounted members having continuously-changing circumferential spacing between them
F04C2/063 (With coaxially-mounted members having continuously-changing circumferential spacing between them) appears on 22 US grants and 28 published applications in this corpus.
Search patents in F04C- Granted patents
- 22
- Published applications
- 28
- Assignees
- 15
- Inventors
- 45
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 3 |
| 2016 | 1 | 3 |
| 2017 | 2 | 3 |
| 2018 | 1 | 2 |
| 2019 | 1 | 1 |
| 2020 | 2 | 3 |
| 2021 | 1 | 0 |
| 2022 | 1 | 3 |
| 2023 | 1 | 0 |
| 2024 | 1 | 3 |
| 2025 | 1 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electric diaphragm pump with offset slider crank28 Apr 2026US 12,612,911 B2Ingersoll-Rand Industrial U.S., Inc.
- Bidirectional rotary hydraulic motor and pump13 Jan 2026US 12,523,153 B2
- Bidirectional rotary hydraulic motor and pump11 Mar 2025US 12,247,489 B2
- Bidirectional rotary hydraulic motor and pump9 Apr 2024US 11,952,899 B1
- Electric diaphragm pump with offset slider crank5 Dec 2023US 11,835,043 B2Ingersoll-Rand Industrial U.S., Inc.
- Scroll pump with two-piece crankshaft5 Jun 2025US 2025/0180022 A1Agilent Technologies, Inc.
- Bidirectional Rotary Hydraulic Motor and Pump29 May 2025US 2025/0172068 A1
- Bidirectional Rotary Hydraulic Motor and Pump13 Jun 2024US 2024/0191625 A1
- Electric diaphragm pump with offset slider crank29 Feb 2024US 2024/0068471 A1Ingersoll-Rand Industrial U.S., Inc.
- Material Mover18 Jan 2024US 2024/0018963 A1Paddlemover LLC
Most cited
By later US patents
- Micro-fluidic valve with a colloidal particle element83US 6,802,489 B2Colorado School of Mines · 2004
- Pump with inlet and outlet simultaneously exposed to pump chamber and method of operating same50US 5,639,220 ABrother Kogyo Kabushiki Kaisha · 1997
- Extracorporeal blood pump for cardiac surgery20US 5,800,138 A1998
- Systems and methods for energizing and distributing fluids7US 8,011,903 B22011
- Rotary pump having alternating pistons controlled by non-circular gears4US 4,872,818 AMitsubishi Denki Kabushiki Kaisha · 1989