C09K 8/882
Obtained by reactions only involving carbon-to-carbon unsaturated bonds
Official title: {obtained by reactions only involving carbon-to-carbon unsaturated bonds}
C09K8/882 (Obtained by reactions only involving carbon-to-carbon unsaturated bonds) appears on 313 US grants and 337 published applications in this corpus.
Search patents in C09K- Granted patents
- 313
- Published applications
- 337
- Assignees
- 122
- Inventors
- 661
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 9 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 7 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 5 |
| 2004 | 5 | 3 |
| 2005 | 0 | 1 |
| 2006 | 2 | 2 |
| 2007 | 4 | 4 |
| 2008 | 0 | 5 |
| 2009 | 4 | 9 |
| 2010 | 3 | 8 |
| 2011 | 4 | 10 |
| 2012 | 6 | 21 |
| 2013 | 4 | 12 |
| 2014 | 16 | 33 |
| 2015 | 10 | 22 |
| 2016 | 19 | 36 |
| 2017 | 21 | 25 |
| 2018 | 21 | 23 |
| 2019 | 26 | 18 |
| 2020 | 21 | 27 |
| 2021 | 16 | 24 |
| 2022 | 23 | 16 |
| 2023 | 18 | 6 |
| 2024 | 9 | 16 |
| 2025 | 11 | 6 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Aqueous based, water-soluble polymer slurry system21 Jul 2026US 12,686,811 B2Terra-Ace Intermediate Holdings, LLC
- Surface-treated, transportable ISO tanks and methods of reducing deposition of a friction reducer on a surface9 Jun 2026US 12,649,806 B2Aculon, Inc.
- Composite diversion particle agglomeration28 Apr 2026US 12,612,546 B2Carbo Ceramics Inc.
- Radiation activated well treatment7 Apr 2026US 12,595,407 B2Saudi Arabian Oil Company
- Method for stimulating injection wells using reducing agents24 Mar 2026US 12,584,062 B2Jgs Resources, LLC
- Method for modifying the permeability of a subterranean formation and related treatment fluid used in said method20 Aug 2026US 2026/0242657 A1ENI S. p. A.
- Method for stimulating injection wells using reducing agents9 Jul 2026US 2026/0193528 A1Jgs Resources, LLC
- Composite diversion particle agglomeration26 Mar 2026US 2026/0085229 A1Carbo Ceramics Inc.
- Shear-resistant, high-drag-reducing, medium-viscosity slickwater drag reducing agent and preparation method therefor5 Mar 2026US 2026/0062504 A1Southwest Petroleum University
- Temporary Isolation System for Reservoirs15 Jan 2026US 2026/0015920 A1Baker Hughes Oilfield Operations LLC
Most cited
By later US patents
- Methods for stimulating hydrocarbon production156US 6,828,280 B2Schlumberger Technology Corporation · 2004
- Acidized fracturing fluids containing high molecular weight poly(vinylamines) for enhanced oil recovery144US 4,843,118 AAir Products and Chemicals, Inc. · 1989
- Well treatment method using fluid containing lactic acid or salt thereof75US 7,205,264 B2BJ Services Company · 2007
- Gelled compositions and well treating71US 4,440,228 APhillips Petroleum Company · 1984
- Methods to enhance gas production following a relative-permeability-modifier treatment65US 7,552,771 B2Halliburton Energy Services.Inc. · 2009