C10N 2020/02
Viscosity
Official title: Viscosity; Viscosity index
C10N2020/02 (Viscosity) appears on 1,588 US grants and 2,450 published applications in this corpus.
Search patents in C10N- Granted patents
- 1,588
- Published applications
- 2,450
- Assignees
- 546
- Inventors
- 3,622
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 7 | 0 |
| 2000 | 3 | 0 |
| 2001 | 11 | 4 |
| 2002 | 9 | 7 |
| 2003 | 11 | 41 |
| 2004 | 12 | 45 |
| 2005 | 11 | 35 |
| 2006 | 16 | 63 |
| 2007 | 14 | 92 |
| 2008 | 19 | 64 |
| 2009 | 27 | 117 |
| 2010 | 55 | 106 |
| 2011 | 67 | 122 |
| 2012 | 68 | 108 |
| 2013 | 99 | 105 |
| 2014 | 98 | 100 |
| 2015 | 79 | 127 |
| 2016 | 87 | 130 |
| 2017 | 93 | 106 |
| 2018 | 72 | 137 |
| 2019 | 92 | 172 |
| 2020 | 94 | 142 |
| 2021 | 122 | 102 |
| 2022 | 107 | 133 |
| 2023 | 93 | 101 |
| 2024 | 76 | 102 |
| 2025 | 80 | 117 |
| 2026 | 55 | 72 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lubricant compositions for reduced pre-ignition in hydrogen fueled engines29 Sep 2026US 12,747,407 B2Infineum International Limited
- Lubricant compositions containing magnesium detergent for reduced pre-ignition in hydrogen fueled engines15 Sep 2026US 12,735,654 B2Infineum International Limited
- Lubricant compositions containing molybdenum for reduced pre-ignition in hydrogen fueled engines1 Sep 2026US 12,723,212 B2Infineum International Limited
- Lubricating engine oil for hybrid or plug-in hybrid electric vehicles1 Sep 2026US 12,723,214 B2Chevron Japan Ltd.
- Furan based compositions and methods of making thereof11 Aug 2026US 12,703,689 B2University of Delaware
- Sulfide compound, extreme pressure additive, and lubricant oil composition containing said extreme pressure additive8 Oct 2026US 2026/0308471 A1DIC Corporation
- Lubricant fluids with reduced pour point24 Sep 2026US 2026/0286246 A1ExxonMobil Technology and Engineering Company
- Process for recycling a circular hydrocarbon from a used high-performance lubricant24 Sep 2026US 2026/0286247 A1ExxonMobil Technology and Engineering Company
- Low Temperature Storage Medical Container17 Sep 2026US 2026/0272777 A1Becton, Dickinson and Company
- Base oil for refrigerator oil, refrigerator oil, and working fluid composition17 Sep 2026US 2026/0275222 A1Eneos Corporation
Most cited
By later US patents
- Refrigerator oil, compressor oil composition, hydraulic fluid composition, metalworking fluid composition, heat treatment oil composition, lubricant composition for machine tool and lubricant composition779US 8,193,129 B2Nippon Oil Co., Ltd. · 2012
- Isoparaffinic lube basestock compositions148US 6,090,989 AMobil Oil Corporation · 2000
- Biodegradable non-toxic gear oil88US 6,649,574 B2ExxonMobil Research and Engineering Company · 2003
- Magnetorheological fluid compositions and prosthetic knees utilizing same85US 7,101,487 B2Ossur Engineering, Inc. · 2006
- Process for the oligomerization of α-olefins having low unsaturation82US 6,706,828 B2Crompton Corporation · 2004