C10N 2040/40
Generators or electric motors in oil or gas winning field
Official title: {Generators or electric motors in oil or gas winning field}
C10N2040/40 (Generators or electric motors in oil or gas winning field) appears on 1,099 US grants and 182 published applications in this corpus.
Search patents in C10N- Granted patents
- 1,099
- Published applications
- 182
- Assignees
- 349
- Inventors
- 1,597
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 11 | 0 |
| 1978 | 11 | 0 |
| 1979 | 11 | 0 |
| 1980 | 8 | 0 |
| 1981 | 22 | 0 |
| 1982 | 20 | 0 |
| 1983 | 13 | 0 |
| 1984 | 23 | 0 |
| 1985 | 14 | 0 |
| 1986 | 8 | 0 |
| 1987 | 11 | 0 |
| 1988 | 20 | 0 |
| 1989 | 28 | 0 |
| 1990 | 42 | 0 |
| 1991 | 56 | 0 |
| 1992 | 45 | 0 |
| 1993 | 61 | 0 |
| 1994 | 72 | 0 |
| 1995 | 75 | 0 |
| 1996 | 68 | 0 |
| 1997 | 59 | 0 |
| 1998 | 70 | 0 |
| 1999 | 51 | 0 |
| 2000 | 34 | 0 |
| 2001 | 60 | 17 |
| 2002 | 45 | 31 |
| 2003 | 28 | 26 |
| 2004 | 18 | 18 |
| 2005 | 10 | 7 |
| 2006 | 8 | 1 |
| 2007 | 6 | 2 |
| 2008 | 7 | 2 |
| 2009 | 4 | 3 |
| 2010 | 2 | 0 |
| 2011 | 3 | 1 |
| 2012 | 2 | 2 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 23 |
| 2019 | 10 | 11 |
| 2020 | 17 | 10 |
| 2021 | 11 | 3 |
| 2022 | 4 | 4 |
| 2023 | 2 | 5 |
| 2024 | 5 | 7 |
| 2025 | 8 | 4 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of fracturing using a xanthan/guar gum containing fluid6 Oct 2026US 12,753,361 B1Sunita Hydrocolloids Inc.
- Structured assembly lubricant4 Aug 2026US 12,698,452 B2Vgp Ipco LLC
- Lubricant composition28 Jul 2026US 12,692,456 B2Idemitsu Kosan Co., Ltd.
- Lubricating oil composition7 Jul 2026US 12,674,112 B2Idemitsu Kosan Co., Ltd.
- Liquid coolants with dissolved gas for electric systems18 Nov 2025US 12,473,509 B2ExxonMobil Technology and Engineering Company
- Vortex Flow Generation of Electricity17 Sep 2026US 2026/0275951 A1UpTerra Corporation
- Lubricating fluid for an electric motor7 May 2026US 2026/0125612 A1Afton Chemical Corporation
- Lubricating and cooling fluid for an electric motor system having an auxiliary fluid pumping system30 Apr 2026US 2026/0117143 A1Mercedes-Benz Group AG
- Structured assembly lubricant3 Jul 2025US 2025/0215343 A1Vgp Ipco LLC
- Lubricant composition8 May 2025US 2025/0145903 A1Idemitsu Kosan Co., Ltd.
Most cited
By later US patents
- Visco-elastic, isotropic materials based on water, fluorinate sufactants and fluorinated oils, process for their preparation, and their use in various fields, such as optics, pharmacology and electrodynamics274US 5,185,099 AInstitut National de Recherche Chimique Appliquee · 1993
- Lubricative coating composition, article and assembly containing same and method thereof210US 5,266,359 ABecton, Dickinson and Company · 1993
- Refrigeration lubricants168US 4,755,316 AAllied-Signal Inc. · 1988
- Method for preparing lubricated surfaces and product133US 4,844,986 ABecton, Dickinson and Company · 1989
- Ashless dispersants formed from substituted acylating agents and their production and use115US 5,241,003 AEthyl Petroleum Additives, Inc. · 1993