C10N 2040/042
For automatic transmissions
Official title: {for automatic transmissions}
C10N2040/042 (For automatic transmissions) appears on 715 US grants and 458 published applications in this corpus.
Search patents in C10N- Granted patents
- 715
- Published applications
- 458
- Assignees
- 202
- Inventors
- 1,193
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 12 | 0 |
| 1978 | 13 | 0 |
| 1979 | 19 | 0 |
| 1980 | 15 | 0 |
| 1981 | 4 | 0 |
| 1982 | 6 | 0 |
| 1983 | 7 | 0 |
| 1984 | 10 | 0 |
| 1985 | 2 | 0 |
| 1986 | 6 | 0 |
| 1987 | 14 | 0 |
| 1988 | 27 | 0 |
| 1989 | 31 | 0 |
| 1990 | 26 | 0 |
| 1991 | 30 | 0 |
| 1992 | 24 | 0 |
| 1993 | 26 | 0 |
| 1994 | 18 | 0 |
| 1995 | 12 | 0 |
| 1996 | 14 | 0 |
| 1997 | 27 | 0 |
| 1998 | 29 | 0 |
| 1999 | 22 | 0 |
| 2000 | 13 | 0 |
| 2001 | 18 | 5 |
| 2002 | 13 | 16 |
| 2003 | 11 | 11 |
| 2004 | 7 | 21 |
| 2005 | 6 | 24 |
| 2006 | 5 | 31 |
| 2007 | 5 | 27 |
| 2008 | 11 | 27 |
| 2009 | 4 | 25 |
| 2010 | 16 | 21 |
| 2011 | 13 | 21 |
| 2012 | 10 | 25 |
| 2013 | 19 | 20 |
| 2014 | 18 | 23 |
| 2015 | 18 | 18 |
| 2016 | 26 | 23 |
| 2017 | 13 | 15 |
| 2018 | 10 | 22 |
| 2019 | 9 | 25 |
| 2020 | 22 | 17 |
| 2021 | 16 | 13 |
| 2022 | 10 | 10 |
| 2023 | 5 | 7 |
| 2024 | 6 | 5 |
| 2025 | 3 | 3 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Structured assembly lubricant4 Aug 2026US 12,698,452 B2Vgp Ipco LLC
- Transmission lubricants containing molybdenum19 May 2026US 12,630,779 B2Afton Chemical Corporation
- Ashless additive composition17 Jun 2025US 12,331,260 B2Chevron Japan Ltd.
- Lubricating oil compositions for automatic transmissions6 May 2025US 12,291,686 B2Chevron Japan Ltd.
- Structured assembly lubricant22 Apr 2025US 12,281,276 B2Vgp Ipco LLC
- Lubricant composition for automotive transmissions13 Aug 2026US 2026/0234488 A1Totalenergies Onetech
- Lubricant composition for automotive transmissions18 Jun 2026US 2026/0167888 A1Totalenergies Onetech
- Friction modifier for wet clutch23 Apr 2026US 2026/0109911 A1Chevron Oronite Company LLC
- Structured assembly lubricant3 Jul 2025US 2025/0215343 A1Vgp Ipco LLC
- Lubricating oil composition27 Mar 2025US 2025/0101337 A1Chevron Japan Ltd.
Most cited
By later US patents
- Lubricating composition228US 4,956,122 AUniroyal Chemical Company, Inc. · 1990
- Novel VI improver, dispersant, and anti-oxidant additive and lubricating oil composition containing same122US 4,863,623 ATexaco Inc. · 1989
- Extended life functional fluid116US 3,933,659 AChevron Research Company · 1976
- Ashless dispersants formed from substituted acylating agents and their production and use115US 5,241,003 AEthyl Petroleum Additives, Inc. · 1993
- Nitrogenous dispersants, lubricants and concentrates containing said nitrogenous dispersants102US 4,454,059 AThe Lubrizol Corporation · 1984