F01M 11/10
Indicating devices
Official title: Indicating devices; Other safety devices
F01M11/10 (Indicating devices) appears on 766 US grants and 654 published applications in this corpus.
Search patents in F01M- Granted patents
- 766
- Published applications
- 654
- Assignees
- 342
- Inventors
- 1,786
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 6 | 0 |
| 1983 | 4 | 0 |
| 1984 | 6 | 0 |
| 1985 | 11 | 0 |
| 1986 | 14 | 0 |
| 1987 | 11 | 0 |
| 1988 | 17 | 0 |
| 1989 | 10 | 0 |
| 1990 | 10 | 0 |
| 1991 | 17 | 0 |
| 1992 | 8 | 0 |
| 1993 | 10 | 0 |
| 1994 | 9 | 0 |
| 1995 | 5 | 0 |
| 1996 | 9 | 0 |
| 1997 | 14 | 0 |
| 1998 | 6 | 0 |
| 1999 | 13 | 0 |
| 2000 | 9 | 0 |
| 2001 | 9 | 1 |
| 2002 | 6 | 14 |
| 2003 | 16 | 15 |
| 2004 | 8 | 15 |
| 2005 | 12 | 10 |
| 2006 | 9 | 9 |
| 2007 | 8 | 9 |
| 2008 | 10 | 14 |
| 2009 | 5 | 9 |
| 2010 | 9 | 16 |
| 2011 | 8 | 11 |
| 2012 | 10 | 19 |
| 2013 | 15 | 23 |
| 2014 | 13 | 30 |
| 2015 | 19 | 34 |
| 2016 | 25 | 26 |
| 2017 | 35 | 43 |
| 2018 | 30 | 58 |
| 2019 | 38 | 58 |
| 2020 | 63 | 56 |
| 2021 | 45 | 48 |
| 2022 | 61 | 47 |
| 2023 | 39 | 23 |
| 2024 | 26 | 24 |
| 2025 | 21 | 20 |
| 2026 | 16 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Dry sump engine29 Sep 2026US 12,747,683 B2Toyota Jidosha Kabushiki Kaisha
- Refrigerant circulation system29 Sep 2026US 12,747,898 B2Mazda Motor Corporation
- Method for positive crankshaft ventilation diagnosis15 Sep 2026US 12,736,001 B2Phinia Delphi Luxembourg Sarl
- Locomotive sensor system for monitoring engine and lubricant health8 Sep 2026US 12,730,102 B2Transportation IP Holdings, LLC
- Oil condition estimation device and oil condition estimation method1 Sep 2026US 12,723,527 B2Isuzu Motors Limited
- Engine oil replacement cycle optimization apparatus and method8 Oct 2026US 2026/0309065 A1Hyundai Motor Company
- Oil Level Sensing and Fault Detection8 Oct 2026US 2026/0309537 A1Textron Aviation Inc.
- Method for limiting a suction of oil into an internal combustion engine10 Sep 2026US 2026/0266235 A1Schaeffler Technologies AG & Co. KG
- Internal combustion engine3 Sep 2026US 2026/0258740 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Apparatus and method for monitoring a lubrication system of an aircraft power plant27 Aug 2026US 2026/0251491 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Intelligent fluid sensor for machinery diagnostics, prognostics, and control294US 7,581,434 B1Rockwell Automation Technologies, Inc. · 2009
- In-situ oil analyzer and methods of using same, particularly for continuous on-board analysis of diesel engine lubrication systems128US 5,604,441 ADetroit Diesel Corporation · 1997
- Engine protection system96US 5,070,832 ACummins Engine Company, Inc. · 1991
- Oil deterioration detector method and apparatus93US 4,646,070 ANissan Motor Co., Ltd. · 1987
- Service-interval display for motor vehicles88US 4,533,900 ABayerische Motoren Werke Aktiengesellschaft · 1985