F04B 2201/04
Carter parameters
F04B2201/04 (Carter parameters) appears on 76 US grants and 75 published applications in this corpus.
Search patents in F04B- Granted patents
- 76
- Published applications
- 75
- Assignees
- 69
- Inventors
- 241
- Latest grant
- 16 Jun 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 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 4 |
| 2011 | 2 | 1 |
| 2012 | 1 | 4 |
| 2013 | 1 | 4 |
| 2014 | 2 | 0 |
| 2015 | 2 | 3 |
| 2016 | 5 | 6 |
| 2017 | 2 | 6 |
| 2018 | 4 | 5 |
| 2019 | 6 | 3 |
| 2020 | 5 | 3 |
| 2021 | 4 | 9 |
| 2022 | 3 | 4 |
| 2023 | 6 | 4 |
| 2024 | 3 | 6 |
| 2025 | 5 | 3 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F04B 2201/0402Lubricating oil temperatureIndexing code31
- F04B 2201/0403Carter housing temperatureIndexing code27
- F04B 2201/0404Lubricating oil conditionIndexing code13
- F04B 2201/0401Carter pressureIndexing code10
- F04B 2201/0405LeakageIndexing code7
- F04B 2201/0406Pressure change across an oil filterIndexing code1
Recent patents
- System ADN method for monitoring the oil level of an oil-lubricated compressor16 Jun 2026US 12,655,833 B2Knorr-Bremse Systeme FüR Schienenfahrzeuge GmbH
- Motor load interface sealing arrangement21 Apr 2026US 12,607,173 B2Goodrich Actuation Systems Limited
- Predictive pump maintenance based upon utilization and operating conditions24 Feb 2026US 12,560,078 B2Halliburton Energy Services.Inc.
- Compressor vaporizer with discharge pipe in crankcase27 Jan 2026US 12,535,067 B2Advanced Flow Solutions Inc.
- Liquid-cooled fracturing system23 Dec 2025US 12,503,935 B2Yantai Jereh Petroleum Equipment & Technologies Co., Ltd.
- Predictive pump maintenance based upon utilization and operating conditions27 Aug 2026US 2026/0251055 A1Halliburton Energy Services.Inc.
- Connection assembly and compressor30 Apr 2026US 2026/0117759 A1
- Compressor vaporizer with discharge pipe in crankcase5 Jun 2025US 2025/0180010 A1Advanced Flow Solutions Inc.
- Motor load interface sealing arrangement15 May 2025US 2025/0154967 A1Goodrich Actuation Systems Limited
- Method for controlling a first reference temperature in a device for compressing gas8 May 2025US 2025/0146486 A1Atlas Copco Airpower, Naamloze Vennootschap
Most cited
By later US patents
- Oil level control system129US 6,125,642 ASporlan Valve Company · 2000
- Hermetic electric compressor with improved temperature responsive motor control116US 6,142,741 AMatsushita Electric Industrial Co., Ltd. · 2000
- Compressor control system and method82US 6,082,971 AIngersoll-Rand Company · 2000
- System and method for controlling screw compressors75US 6,017,192 A2000
- Variable capacity wobble plate compressor capable of controlling angularity of wobble plate with high responsiveness59US 4,526,516 ADiesel Kiki Co., Ltd. · 1985