C09K 8/08
Containing natural organic compounds
Official title: containing natural organic compounds, e.g. polysaccharides, or derivatives thereof
C09K8/08 (Containing natural organic compounds) appears on 468 US grants and 399 published applications in this corpus.
Search patents in C09K- Granted patents
- 468
- Published applications
- 399
- Assignees
- 166
- Inventors
- 805
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 7 | 0 |
| 1984 | 9 | 0 |
| 1985 | 9 | 0 |
| 1986 | 6 | 0 |
| 1987 | 4 | 0 |
| 1988 | 7 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 5 | 0 |
| 1996 | 6 | 0 |
| 1997 | 11 | 0 |
| 1998 | 11 | 0 |
| 1999 | 7 | 0 |
| 2000 | 11 | 0 |
| 2001 | 11 | 6 |
| 2002 | 12 | 8 |
| 2003 | 9 | 10 |
| 2004 | 6 | 13 |
| 2005 | 5 | 10 |
| 2006 | 6 | 20 |
| 2007 | 7 | 8 |
| 2008 | 2 | 9 |
| 2009 | 6 | 10 |
| 2010 | 8 | 12 |
| 2011 | 11 | 13 |
| 2012 | 4 | 14 |
| 2013 | 8 | 17 |
| 2014 | 7 | 17 |
| 2015 | 16 | 23 |
| 2016 | 6 | 16 |
| 2017 | 11 | 26 |
| 2018 | 25 | 39 |
| 2019 | 44 | 44 |
| 2020 | 37 | 32 |
| 2021 | 34 | 13 |
| 2022 | 11 | 6 |
| 2023 | 14 | 10 |
| 2024 | 10 | 7 |
| 2025 | 7 | 10 |
| 2026 | 2 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for forming high efficiency geothermal wellbores24 Feb 2026US 12,560,049 B2Eavor Technologies Inc.
- Brine-tolerant compositions comprising fatty acid or fatty ester reaction products of saccharide polymers10 Feb 2026US 12,545,830 B2Integrity Bio-Chemicals, LLC
- Method for removing a filter cake from a borehole11 Nov 2025US 12,466,988 B2
- Shale inhibitor additives, wellbore fluids comprising said additives, and methods of using said fluids21 Oct 2025US 12,448,867 B2Schlumberger Technology Corporation
- Synergistic viscosifiers for clay-free, water-based drilling fluids30 Sep 2025US 12,428,588 B2Halliburton Energy Services.Inc.
- Drilling fluids utilizing a salt-tolerant lubricant and methods of use therefor9 Jul 2026US 2026/0193511 A1Saudi Arabian Oil Company
- Brine-tolerant compositions comprising fatty acid or fatty ester reaction products of saccharide polymers21 May 2026US 2026/0139184 A1Integrity Bio-Chemicals, LLC
- Drilling fluid compositions comprising a polymerized biorenewable oil7 May 2026US 2026/0125593 A1Ergon, Inc.
- Fermented molasses composition and uses30 Apr 2026US 2026/0117085 A1
- Drilling fluids including wettability modifiers, and related methods22 Jan 2026US 2026/0022287 A1Schlumberger Technology Corporation
Most cited
By later US patents
- Well treatment process210US 4,957,165 AConoco Inc. · 1990
- Well drilling and servicing fluids and methods of removing filter cake deposited thereby200US 6,494,263 B2Halliburton Energy Services.Inc. · 2002
- Well drilling and servicing fluids and methods of removing filter cake deposited thereby185US 6,422,314 B1Halliburton Energy Services.Inc. · 2002
- Method of gravel packing a well156US 5,363,916 AHalliburton Company · 1994
- Method for removing filtercake139US 6,143,698 ATetra Technologies, Inc. · 2000