Y10T 29/49231
I.c. [internal combustion] engine making
Official title: I.C. [internal combustion] engine making
Y10T29/49231 (I.c. [internal combustion] engine making) appears on 770 US grants and 662 published applications in this corpus.
Search patents in Y10T- Granted patents
- 770
- Published applications
- 662
- Assignees
- 352
- Inventors
- 1,593
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 7 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 6 | 0 |
| 1988 | 9 | 0 |
| 1989 | 9 | 0 |
| 1990 | 8 | 0 |
| 1991 | 7 | 0 |
| 1992 | 10 | 0 |
| 1993 | 11 | 0 |
| 1994 | 11 | 0 |
| 1995 | 12 | 0 |
| 1996 | 10 | 0 |
| 1997 | 13 | 0 |
| 1998 | 18 | 0 |
| 1999 | 15 | 0 |
| 2000 | 24 | 0 |
| 2001 | 9 | 5 |
| 2002 | 20 | 14 |
| 2003 | 11 | 17 |
| 2004 | 17 | 25 |
| 2005 | 22 | 33 |
| 2006 | 17 | 24 |
| 2007 | 15 | 30 |
| 2008 | 21 | 29 |
| 2009 | 19 | 27 |
| 2010 | 17 | 31 |
| 2011 | 24 | 43 |
| 2012 | 26 | 63 |
| 2013 | 46 | 96 |
| 2014 | 63 | 91 |
| 2015 | 68 | 87 |
| 2016 | 59 | 18 |
| 2017 | 51 | 5 |
| 2018 | 27 | 11 |
| 2019 | 16 | 8 |
| 2020 | 7 | 3 |
| 2021 | 5 | 1 |
| 2022 | 3 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Thermal sprayed engine block remanufacturing21 Oct 2025US 12,447,492 B1FCA Corporation
- Thermally insulated exhaust system components18 Oct 2022US 11,473,482 B23M Innovative Properties Company
- Method of modifying an engine oil cooling system21 Jun 2022US 11,365,670 B2Neal Technologies, Inc.
- Gas turbine with axially moveable outer sealing ring with respect to housing against a direction of flow in an assembled state8 Mar 2022US 11,268,398 B2MTU Aero Engines AG
- Compound engine system with rotary engine30 Nov 2021US 11,187,146 B2Pratt & Whitney Canada Corp.
- High efficiency power generation system and system upgrades13 Jan 2022US 2022/0010726 A1Hi Eff Utility Rescue LLC
- Thermally insulated exhaust system components15 Jul 2021US 2021/0215085 A13M Innovative Properties Company
- Compound engine system with rotary engine23 Apr 2020US 2020/0123971 A1Pratt & Whitney Canada Corp.
- High efficiency power generation system and system upgrades9 Apr 2020US 2020/0109662 A1Hi Eff Utility Rescue LLC
- Method of modifying an engine oil cooling system5 Mar 2020US 2020/0072115 A1Neal Technologies, Inc.
Most cited
By later US patents
- Apparatus for repairing cracks194US 5,499,892 ALock-N-Stitch International · 1996
- Spin-on oil filter replacement element128US 5,548,893 A1996
- Self-pressurized container having a convoluted liner and an elastomeric sleeve75US 5,111,971 A1992
- Method for repairing diesel engine cylinder blocks49US 5,222,295 A1993
- Threading initiation tool49US 5,572,913 A1996