F04B 49/123
By changing the eccentricity of one element relative to another element
Official title: {by changing the eccentricity of one element relative to another element}
F04B49/123 (By changing the eccentricity of one element relative to another element) appears on 178 US grants and 120 published applications in this corpus.
Search patents in F04B- Granted patents
- 178
- Published applications
- 120
- Assignees
- 118
- Inventors
- 357
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 6 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 8 | 0 |
| 2001 | 3 | 1 |
| 2002 | 5 | 5 |
| 2003 | 5 | 3 |
| 2004 | 3 | 4 |
| 2005 | 2 | 1 |
| 2006 | 3 | 3 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 2 | 3 |
| 2010 | 1 | 7 |
| 2011 | 1 | 2 |
| 2012 | 3 | 5 |
| 2013 | 2 | 5 |
| 2014 | 4 | 3 |
| 2015 | 5 | 5 |
| 2016 | 3 | 8 |
| 2017 | 3 | 7 |
| 2018 | 4 | 9 |
| 2019 | 7 | 6 |
| 2020 | 5 | 6 |
| 2021 | 6 | 8 |
| 2022 | 7 | 6 |
| 2023 | 4 | 6 |
| 2024 | 5 | 6 |
| 2025 | 7 | 5 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Air compressor14 Apr 2026US 12,601,339 B2Unik World Industrial Co., Ltd.
- Apparatus for filling cartridges of e-vapor devices27 Jan 2026US 12,534,237 B2Altria Client Services LLC
- Full-sealing positive pressure and negative pressure integrated oil-free compressor for oxygen generation11 Nov 2025US 12,467,444 B1Shenyang Canta Medical Tech. Co., Ltd.
- Pump drive system23 Sep 2025US 12,421,946 B2Graco Minnesota Inc.
- Direct control variable displacement pump with dual-function high-pressure relief valve- pressure regulating valve26 Aug 2025US 12,398,682 B1Hamilton Sundstrand Corporation
- Variable displacement pump6 Aug 2026US 2026/0226889 A1Micro Matic USA, Inc.
- Compressor and sensor cleaning system including the same9 Jul 2026US 2026/0192781 A1Hyundai Motor Company
- Variable displacement pump and method for regulating such pump30 Apr 2026US 2026/0117761 A1Casappa S.P.A.
- Apparatus for filling cartridges of e-vapor devices9 Apr 2026US 2026/0097867 A1Altria Client Services LLC
- Pump drive system11 Dec 2025US 2025/0376977 A1Graco Minnesota Inc.
Most cited
By later US patents
- Delivery system for dental treatment solution155US 4,770,632 ANational Patent Development Corporation · 1988
- Radial piston fluid machine and/or adjustable rotor116US 5,634,777 A1997
- Pump for soil fumigant89US 4,141,676 AJohn Blue Company Division of Subscription Television, Inc. · 1979
- Two stage reciprocating compressors and associated HVAC system and methods47US 6,389,823 B1Bristol Compressors, Inc. · 2002
- Convertible pump servo-valve control46US 4,348,159 ARexnord Inc. · 1982