C09K 8/5758
Of natural origin
Official title: {of natural origin, e.g. polysaccharides, cellulose (C09K8/5756 takes precedence)}
C09K8/5758 (Of natural origin) appears on 58 US grants and 56 published applications in this corpus.
Search patents in C09K- Granted patents
- 58
- Published applications
- 56
- Assignees
- 20
- Inventors
- 122
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 0 |
| 2003 | 0 | 1 |
| 2004 | 2 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
| 2009 | 1 | 2 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 2 |
| 2014 | 1 | 5 |
| 2015 | 2 | 7 |
| 2016 | 6 | 7 |
| 2017 | 5 | 8 |
| 2018 | 5 | 3 |
| 2019 | 2 | 1 |
| 2020 | 6 | 5 |
| 2021 | 6 | 2 |
| 2022 | 3 | 2 |
| 2023 | 0 | 1 |
| 2024 | 2 | 0 |
| 2025 | 2 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High temperature gravel packing fluid system19 May 2026US 12,630,757 B1Schlumberger Technology Corporation
- Method for consolidating sand in hydrocarbon reservoirs26 Aug 2025US 12,398,311 B1King Fahd University of Petroleum and Minerals
- Compositions useful for diverting or stopping fluids in subterranean operations25 Feb 2025US 12,234,407 B2Finoric, LLC
- Sand consolidation by enzyme mediated calcium carbonate precipitation30 Apr 2024US 11,970,659 B2Saudi Arabian Oil Company
- Subterranean placement of lignocellulosic materials9 Apr 2024US 11,952,735 B2
- High temperature gravel packing fluid system17 Sep 2026US 2026/0275185 A1Schlumberger Technology Corporation
- Methods for stabilizing subterranean formations16 Oct 2025US 2025/0320404 A1King Fahd University of Petroleum and Minerals
- Sand consolidation by enzyme mediated calcium carbonate precipitation30 Mar 2023US 2023/0096777 A1Saudi Arabian Oil Company
- Sand consolidation by enzyme mediated calcium carbonate precipitation15 Sep 2022US 2022/0290035 A1Saudi Arabian Oil Company
- Subterranean placement of lignocellulosic materials2 Jun 2022US 2022/0169917 A1
Most cited
By later US patents
- Method of releasing stuck pipe or tools and spotting fluids therefor107US 6,148,917 AActisystems, Inc. · 2000
- Aphron-containing well drilling and servicing fluids of enhanced stability84US 6,123,159 AActisystems, Inc. · 2000
- Xanthan gels in brines and methods of using such xanthan gels in subterranean formations65US 6,987,083 B2Halliburton Energy Services.Inc. · 2006
- Method of gravel packing a well63US 4,552,215 AHalliburton Company · 1985
- Aphron-containing well drilling and servicing fluids of enhanced stability60US 6,422,326 B1Actisystems, Inc. · 2002