F01
Machines or engines in general
Official title: Machines or engines in general; engine plants in general; steam engines
F01 (Machines or engines in general) appears on 112,076 US grants and 102,037 published applications in this corpus.
Search patents in F01- Granted patents
- 112,076
- Published applications
- 102,037
- Assignees
- 13,027
- Inventors
- 127,639
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1048 | 0 |
| 1977 | 840 | 0 |
| 1978 | 833 | 0 |
| 1979 | 582 | 0 |
| 1980 | 757 | 0 |
| 1981 | 750 | 0 |
| 1982 | 673 | 0 |
| 1983 | 742 | 0 |
| 1984 | 917 | 0 |
| 1985 | 979 | 0 |
| 1986 | 815 | 0 |
| 1987 | 1029 | 0 |
| 1988 | 957 | 0 |
| 1989 | 1164 | 0 |
| 1990 | 1034 | 0 |
| 1991 | 1090 | 0 |
| 1992 | 1193 | 0 |
| 1993 | 1214 | 0 |
| 1994 | 1121 | 0 |
| 1995 | 1164 | 0 |
| 1996 | 1199 | 0 |
| 1997 | 1183 | 0 |
| 1998 | 1522 | 0 |
| 1999 | 1458 | 0 |
| 2000 | 1677 | 0 |
| 2001 | 2037 | 671 |
| 2002 | 2084 | 1979 |
| 2003 | 2121 | 2234 |
| 2004 | 1934 | 2759 |
| 2005 | 1915 | 2989 |
| 2006 | 2116 | 2951 |
| 2007 | 1865 | 3205 |
| 2008 | 1785 | 3393 |
| 2009 | 1863 | 4003 |
| 2010 | 2324 | 4280 |
| 2011 | 2539 | 4055 |
| 2012 | 3317 | 4223 |
| 2013 | 3375 | 5235 |
| 2014 | 3994 | 5340 |
| 2015 | 4173 | 5829 |
| 2016 | 4058 | 6660 |
| 2017 | 4965 | 6215 |
| 2018 | 5373 | 6233 |
| 2019 | 6338 | 5600 |
| 2020 | 6201 | 5603 |
| 2021 | 5167 | 4182 |
| 2022 | 4736 | 3733 |
| 2023 | 3783 | 3166 |
| 2024 | 3435 | 2980 |
| 2025 | 3024 | 2545 |
| 2026 | 1613 | 1974 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subclasses
Granted patents
- F01DNon-positive displacement machines or engines42,406
- F01NGas-flow silencers or exhaust apparatus for machines or engines in general27,077
- F01LCyclically operating valves for machines or engines14,626
- F01PCooling of machines or engines in general9,099
- F01MLubricating of machines or engines in general8,401
- F01KSteam engine plants6,750
- F01CRotary-piston or oscillating-piston machines or engines5,722
- F01BMachines or engines, in general or of positive-displacement type3,309
Recent patents
- Systems and methods for rotating coalescers maintaining positive recirculation through a dynamic seal6 Oct 2026US 12,752,228 B2Atmus Filtration IP Inc.
- Crankcase oil separation device for internal combustion engine6 Oct 2026US 12,752,229 B2Caterpillar Inc.
- Exhaust gas purification catalyst6 Oct 2026US 12,752,237 B2Cataler Corporation
- Liquid tank for a liquid system of a vehicle, liquid system, and vehicle6 Oct 2026US 12,752,620 B2Hella GmbH & Co. KGaA
- Systems and methods of servicing equipment6 Oct 2026US 12,752,747 B2General Electric Company
- Exhaust purification device8 Oct 2026US 2026/0307009 A1Mazda Motor Corporation
- System for treating an exhaust gas8 Oct 2026US 2026/0307052 A1Johnson Matthey Public Limited Company
- Method for attaching a metal reinforcement on a leading edge of a turbomachine blade8 Oct 2026US 2026/0307338 A1Safran Aerospace Composites
- Variable-pitch assembly for a turbomachine fan8 Oct 2026US 2026/0307778 A1Safran Aircraft Engines
- Modular container and system including same8 Oct 2026US 2026/0307857 A1Rpm Industries, LLC
Most cited
By later US patents
- Surgical stapling systems and staple cartridges for deploying surgical staples with tissue compression features2,424US 7,604,151 B2Ethicon Endo-Surgery, Inc. · 2009
- Surgical stapling instruments having a releasable staple-forming pocket2,400US 7,438,209 B1Ethicon Endo-Surgery, Inc. · 2008
- Staple cartridge cavity configurations2,227US 8,590,762 B2Ethicon Endo-Surgery, Inc. · 2013
- Surgical stapling systems and staple cartridges for deploying surgical staples with tissue compression features2,208US 8,186,560 B2Ethicon Endo-Surgery, Inc. · 2012
- Washer for use with a surgical stapling instrument2,143US 7,669,747 B2Ethicon Endo-Surgery, Inc. · 2010