C10N 2040/135
Steam engines or turbines
Official title: {Steam engines or turbines}
C10N2040/135 (Steam engines or turbines) appears on 326 US grants and 149 published applications in this corpus.
Search patents in C10N- Granted patents
- 326
- Published applications
- 149
- Assignees
- 102
- Inventors
- 534
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 14 | 0 |
| 1978 | 21 | 0 |
| 1979 | 10 | 0 |
| 1980 | 8 | 0 |
| 1981 | 6 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 9 | 0 |
| 1990 | 6 | 0 |
| 1991 | 17 | 0 |
| 1992 | 14 | 0 |
| 1993 | 11 | 0 |
| 1994 | 24 | 0 |
| 1995 | 5 | 0 |
| 1996 | 10 | 0 |
| 1997 | 11 | 0 |
| 1998 | 16 | 0 |
| 1999 | 8 | 0 |
| 2000 | 8 | 0 |
| 2001 | 8 | 0 |
| 2002 | 2 | 2 |
| 2003 | 2 | 1 |
| 2004 | 2 | 7 |
| 2005 | 1 | 3 |
| 2006 | 1 | 3 |
| 2007 | 1 | 2 |
| 2008 | 3 | 1 |
| 2009 | 0 | 4 |
| 2010 | 4 | 7 |
| 2011 | 2 | 7 |
| 2012 | 2 | 15 |
| 2013 | 4 | 11 |
| 2014 | 6 | 10 |
| 2015 | 4 | 10 |
| 2016 | 9 | 12 |
| 2017 | 9 | 5 |
| 2018 | 5 | 9 |
| 2019 | 1 | 10 |
| 2020 | 6 | 7 |
| 2021 | 7 | 5 |
| 2022 | 6 | 5 |
| 2023 | 3 | 4 |
| 2024 | 2 | 2 |
| 2025 | 4 | 5 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Environmentally acceptable lubricant compositions14 Jul 2026US 12,680,050 B2Polnox Corporation
- Solvency enhancer compositions, methods of preparation and methods of use thereof10 Mar 2026US 12,570,916 B2Fluitec N.V.
- Diesters of polyethylene oxide as lubricant base oils17 Feb 2026US 12,553,006 B2Vantage Santolubes Research LLC
- Lubricant composition for gas turbines7 Oct 2025US 12,435,291 B2Totalenergies Onetech
- Chemistries, application, and delivery methods for coke inhibition in fuel and oil systems15 Jul 2025US 12,359,627 B2General Electric Company
- Long service life turbine oil with zero varnish deposits14 May 2026US 2026/0132351 A1Chemical & Schutz High Performance Lubricants, S.A. de C.V.
- Lubricant composition containing an ionic liquid29 Jan 2026US 2026/0028547 A1
- Increased electric conductivity of a lubricant with amphiphilic amine and amphiphilic acid4 Sep 2025US 2025/0277163 A1BASF SE
- Low friction coatings for broad temperature ranges28 Aug 2025US 2025/0270938 A1General Electric Company
- Lubricant Compositions Comprising Core-Shell Colloidal Zn-Containing Particles21 Aug 2025US 2025/0263623 A1
Most cited
By later US patents
- Novel VI improver, dispersant, and anti-oxidant additive and lubricating oil composition containing same122US 4,863,623 ATexaco Inc. · 1989
- Sulfurized compositions102US 4,119,549 AThe Lubrizol Corporation · 1978
- Nitrogenous dispersants, lubricants and concentrates containing said nitrogenous dispersants102US 4,454,059 AThe Lubrizol Corporation · 1984
- Dispersant and antioxidant additive and lubricating oil composition containing same97US 5,075,383 ATexaco Inc. · 1991
- Dispersants and process for their preparation88US 3,980,569 AThe Lubrizol Corporation · 1976