C04B 35/63476
Phenol-formaldehyde condensation polymers
Official title: {Phenol-formaldehyde condensation polymers}
C04B35/63476 (Phenol-formaldehyde condensation polymers) appears on 136 US grants and 144 published applications in this corpus.
Search patents in C04B- Granted patents
- 136
- Published applications
- 144
- Assignees
- 151
- Inventors
- 474
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 1 |
| 2002 | 4 | 4 |
| 2003 | 2 | 5 |
| 2004 | 6 | 7 |
| 2005 | 2 | 0 |
| 2006 | 2 | 3 |
| 2007 | 3 | 6 |
| 2008 | 0 | 2 |
| 2009 | 0 | 5 |
| 2010 | 3 | 6 |
| 2011 | 1 | 9 |
| 2012 | 4 | 7 |
| 2013 | 6 | 11 |
| 2014 | 3 | 8 |
| 2015 | 4 | 2 |
| 2016 | 4 | 2 |
| 2017 | 2 | 4 |
| 2018 | 3 | 6 |
| 2019 | 2 | 7 |
| 2020 | 5 | 4 |
| 2021 | 6 | 10 |
| 2022 | 2 | 7 |
| 2023 | 6 | 8 |
| 2024 | 4 | 7 |
| 2025 | 4 | 8 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Batch for the production of a coarse ceramic refractory basic product, such product and method for its production, lining of an industrial furnace and industrial furnace25 Aug 2026US 12,715,815 B2Refratechnik Holding GmbH
- High temperature composites and methods for preparing high temperature composites7 Apr 2026US 12,595,214 B2Arkema France
- High temperature composites and methods for preparing high temperature composites16 Dec 2025US 12,497,335 B2Arkema France
- Wafer boat9 Sep 2025US 12,412,763 B2KYOCERA Corporation
- Porous composite material capable of generating electric arc in microwave field, preparation method therefor, and use thereof20 May 2025US 12,303,881 B2Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
- Method for Obtaining at Least One Ceramic Component by Joining at Least Two Ceramic SIC Preforms and Ceramic Components Obtained by Said Method20 Aug 2026US 2026/0242299 A1CeramTec GmbH
- High temperature composites and methods for preparing high temperature composites16 Jul 2026US 2026/0200807 A1Arkema France
- High temperature composites and methods for preparing high temperature composites11 Jun 2026US 2026/0159452 A1Arkema France
- High zirconia brick, and preparation process and use thereof14 May 2026US 2026/0132087 A1Zhengzhou Fangming High-Temperature Ceramic New Material Co., Ltd.
- Method for producing polycrystalline alumina abrasive grains12 Feb 2026US 2026/0042945 A1Resonac Corporation
Most cited
By later US patents
- Method of producing boards for printed wiring159US 5,449,480 AHitachi Chemical Company, Ltd. · 1995
- Rigid porous carbon structures, methods of making, methods of using and products containing same143US 6,099,965 AHyperion Catalysis International, Inc. · 2000
- Rigid porous carbon structures, methods of making, methods of using and products containing same62US 6,432,866 B1Hyperion Catalysis International, Inc. · 2002
- Method of manufacturing a diamond composite and a composite produced by same62US 6,447,852 B1Ambler Technologies, Inc. · 2002
- Method of producing a high temperature, high strength bond between a ceramic shape and metal shape41US 4,875,616 AAmerica Matrix, Inc. · 1989