F04C 2240/81
Sensor
Official title: Sensor, e.g. electronic sensor for control or monitoring
F04C2240/81 (Sensor) appears on 268 US grants and 358 published applications in this corpus.
Search patents in F04C- Granted patents
- 268
- Published applications
- 358
- Assignees
- 185
- Inventors
- 720
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 0 | 4 |
| 2009 | 2 | 6 |
| 2010 | 2 | 15 |
| 2011 | 3 | 19 |
| 2012 | 4 | 16 |
| 2013 | 15 | 17 |
| 2014 | 18 | 15 |
| 2015 | 9 | 11 |
| 2016 | 14 | 28 |
| 2017 | 17 | 17 |
| 2018 | 22 | 31 |
| 2019 | 20 | 16 |
| 2020 | 20 | 33 |
| 2021 | 15 | 34 |
| 2022 | 20 | 23 |
| 2023 | 31 | 22 |
| 2024 | 19 | 18 |
| 2025 | 20 | 15 |
| 2026 | 11 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Scroll-type electric compressor6 Oct 2026US 12,753,761 B2Sanden Corporation
- Diagnostic checks of a gear pump in a fluid system25 Aug 2026US 12,716,414 B2Project Phoenix, LLC
- Eccentric screw pump with magnetic coupling18 Aug 2026US 12,710,041 B2NETZSCH Pumpen & Systeme GmbH
- Fluid rotary machine with an encoder module23 Jun 2026US 12,662,985 B2Danfoss Power Solutions ApS
- Pump for additive manufacturing16 Jun 2026US 12,654,396 B2Sciperio, Inc
- Motorized device comprising a member with eccentric movement1 Oct 2026US 2026/0298242 A1Sonceboz Motion Boncourt SA
- Gas Compressor20 Aug 2026US 2026/0243258 A1Hitachi Industrial Equipment Systems Co., Ltd.
- Air Compressor30 Jul 2026US 2026/0218705 A1Hitachi Industrial Equipment Systems Co., Ltd.
- Method for controlling an eccentric screw pump23 Jul 2026US 2026/0210354 A1Seepex GmbH
- Determining tip seal maintenance requirement in scroll pump23 Jul 2026US 2026/0210359 A1Agilent Technologies, Inc.
Most cited
By later US patents
- Compressor diagnostic and recording system148US 6,406,265 B1Scroll Technologies · 2002
- Micro-processor control of a movable slide stop and a movable slide valve in a helical screw rotary compressor with an enconomizer inlet port77US 4,609,329 AFrick Company · 1986
- Compressor diagnostic and recording system74US 6,966,759 B2Scroll Technologies · 2005
- Variable speed compressor protection system and method34US 8,459,053 B2Emerson Climate Technologies, Inc. · 2013
- Compressor with flooded start control30US 9,194,393 B2Emerson Climate Technologies, Inc. · 2015