C09K 21/12
Containing phosphorus
Official title: containing phosphorus
C09K21/12 (Containing phosphorus) appears on 546 US grants and 686 published applications in this corpus.
Search patents in C09K- Granted patents
- 546
- Published applications
- 686
- Assignees
- 387
- Inventors
- 1,469
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 6 | 0 |
| 1979 | 6 | 0 |
| 1980 | 10 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 7 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 7 | 0 |
| 1992 | 8 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 7 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 10 | 0 |
| 2001 | 13 | 4 |
| 2002 | 3 | 5 |
| 2003 | 6 | 8 |
| 2004 | 6 | 11 |
| 2005 | 4 | 14 |
| 2006 | 7 | 15 |
| 2007 | 1 | 15 |
| 2008 | 7 | 23 |
| 2009 | 8 | 20 |
| 2010 | 9 | 24 |
| 2011 | 12 | 53 |
| 2012 | 18 | 30 |
| 2013 | 24 | 34 |
| 2014 | 26 | 39 |
| 2015 | 24 | 33 |
| 2016 | 19 | 39 |
| 2017 | 24 | 39 |
| 2018 | 25 | 49 |
| 2019 | 41 | 40 |
| 2020 | 35 | 36 |
| 2021 | 29 | 36 |
| 2022 | 19 | 29 |
| 2023 | 25 | 30 |
| 2024 | 21 | 32 |
| 2025 | 12 | 13 |
| 2026 | 10 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Copolyetherester1 Sep 2026US 12,723,153 B2Celanese Polymers Holding, Inc.
- Polyetherester21 Jul 2026US 12,686,769 B2Celanese Polymers Holding, Inc.
- High-heat and high-shear-resistant high-flame-retardant halogen-free flame-retardant compound system and use30 Jun 2026US 12,668,683 B2Jiangsu Liside New Material Co., Ltd.
- Fire-rated finishing product suitable for fabric applications16 Jun 2026US 12,655,579 B1Archroma International (Germany) GmbH
- Method for preparing coated MOFs by self-assembly of intumescent flame retardant26 May 2026US 12,637,620 B2China Academy of Safety Science and Technology
- Additives for Thermal Management Fluid and Thermal Management Fluid Compositions Including Same1 Oct 2026US 2026/0297410 A1SK Innovation Co., Ltd.
- Hydrophobic lignin-based in-built fire retardant, its preparation and application in polyurethane foam17 Sep 2026US 2026/0275197 A1Nano and Advanced Materials Institute Limited
- Fire retardant compositions containing one or more surfactants13 Aug 2026US 2026/0233045 A1Perimeter Solutions LP
- Phosphorus-containing (meth)acryloyl compound, phosphorus-containing vinyl benzyl compound, production methods therefor, and flame-retardant resin composition and laminated board for electronic circuit board containing same13 Aug 2026US 2026/0234170 A1Nippon Steel Chemical & Material Co., Ltd.
- Flame retardant and use thereof13 Aug 2026US 2026/0234171 A1Shikoku Chemicals Corporation
Most cited
By later US patents
- Heat expandable compositions158US 6,207,085 B1Rectorseal Corporation · 2001
- Flame-retardant combination152US 6,255,371 B1Clariant GmbH · 2001
- Plastic article having flame retardant properties93US 5,552,185 AMonsanto Company · 1996
- Plastic article having flame retardant properties90US 6,110,559 ASolutia Inc. · 2000
- Flexible fire barrier felt81US 5,830,319 AMinnesota Mining and Manufacturing Company · 1998