C10M 149/22
Polyamines
C10M149/22 (Polyamines) appears on 57 US grants and 41 published applications in this corpus.
Search patents in C10M- Granted patents
- 57
- Published applications
- 41
- Assignees
- 37
- Inventors
- 174
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 2 | 1 |
| 2011 | 1 | 2 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 2 | 2 |
| 2015 | 0 | 1 |
| 2016 | 1 | 2 |
| 2017 | 2 | 1 |
| 2018 | 0 | 3 |
| 2019 | 1 | 7 |
| 2020 | 9 | 3 |
| 2021 | 1 | 1 |
| 2022 | 0 | 4 |
| 2023 | 4 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 3 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lubricant compositions providing robust valvetrain wear protection in the ford 6.7L engine test1 Sep 2026US 12,723,215 B2Infineum International Limited
- Lubricant formulations containing functionalized olefin polymers and reduced traditional dispersant4 Aug 2026US 12,698,453 B2Infineum International Limited
- Lubricating compositions9 Jun 2026US 12,649,892 B2Tribodyn, Inc.
- Lubricating composition for inhibiting plugging and method of inhibiting plugging using the same23 Jul 2024US 12,043,812 B2SK Geo Centric Co., Ltd.
- Polyolefin dispersants and methods of making and using thereof24 Oct 2023US 11,795,247 B2The University of Southern Mississippi
- Industrial gear lubricant27 Aug 2026US 2026/0250597 A1The Lubrizol Corporation
- Hydraulic fluid composition21 May 2026US 2026/0139197 A1The Lubrizol Corporation
- Lubricating oil compositions14 May 2026US 2026/0132352 A1
- Controlled-composition capping of polyamines and capped polyamines therefrom12 Mar 2026US 2026/0071134 A1Infineum International Limited
- Lubricating oil compositions for improved cleanliness in ammonia engines and methods of use thereof5 Mar 2026US 2026/0062640 A1
Most cited
By later US patents
- Dispersant additives derived from lactone modified amido-amine adducts78US 4,963,275 AExxon Chemical Patents Inc. · 1990
- Process for preparing polymeric dispersants having alternating polyalkylene and succinic groups74US 5,175,225 AChevron Research and Technology Company · 1992
- Amide dispersant additives derived from amino-amines52US 4,956,107 AExxon Chemical Patents Inc. · 1990
- Method of reducing sludge and varnish precursors in lubricating oils39US 5,478,463 AExxon Chemical Patents Inc. · 1995
- Dispersant additives derived from amido-amines37US 4,857,217 AExxon Chemical Patents Inc. · 1989