C04B 41/4876
Polystyrene
Official title: {Polystyrene}
C04B41/4876 (Polystyrene) appears on 21 US grants and 22 published applications in this corpus.
Search patents in C04B- Granted patents
- 21
- Published applications
- 22
- Assignees
- 12
- Inventors
- 57
- Latest grant
- 24 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 2 | 3 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 1 | 2 |
| 2020 | 4 | 4 |
| 2021 | 1 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Coated roofing materials24 Dec 2024US 12,172,935 B2Owens Corning Intellectual Capital, LLC
- Exterior sheathing panel with integrated air/water barrier membrane8 Mar 2022US 11,267,227 B2Tremco Incorporated
- Exterior sheathing panel with integrated air/water barrier membrane2 Feb 2021US 10,906,271 B2Tremco Incorporated
- Waterborne wet look coating composition1 Dec 2020US 10,851,025 B2
- Hydrophobic finish compositions with extended flow time retention and building products made thereof27 Oct 2020US 10,815,149 B2United States Gypsum Company
- Smart hybrid sealants for concrete cracks and joints, methods of making, and methods of use24 Sep 2026US 2026/0286622 A1
- Coated roofing materials27 Feb 2025US 2025/0066265 A1Owens Corning Intellectual Capital, LLC
- Uv cured cross-linked abrasion resistant liquid ceramic nano-composite29 Dec 2022US 2022/0411641 A1Unmatched Bonding Limited
- Polymer and porous inorganic composite article and methods thereof1 Jul 2021US 2021/0198158 A1
- Coated roofing materials12 Nov 2020US 2020/0354282 A1Owens Corning Intellectual Capital, LLC
Most cited
By later US patents
- Waterproofing system for water-penetrable construction surfaces29US 5,145,748 AW. R. Grace & Co.-Conn. · 1992
- Compositions and methods for waterproofing structures formed from water-penetrable construction materials14US 5,132,183 AW. R. Grace & Co.-Conn. · 1992
- Method of waterproofing rigid structural materials12US 5,482,737 APoly Wall International, Inc. · 1996
- Method for waterproofing rigid structural materials8US 5,624,714 APoly Wall International, Inc. · 1997
- Method of coating concrete and masonry surfaces5US 9,512,042 B2Magneco/Metrel, Inc. · 2016