E04C 2/20
Of plastics
Official title: of plastics
E04C2/20 (Of plastics) appears on 705 US grants and 811 published applications in this corpus.
Search patents in E04C- Granted patents
- 705
- Published applications
- 811
- Assignees
- 413
- Inventors
- 1,252
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 11 | 0 |
| 1978 | 11 | 0 |
| 1979 | 7 | 0 |
| 1980 | 4 | 0 |
| 1981 | 9 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 10 | 0 |
| 1991 | 8 | 0 |
| 1992 | 9 | 0 |
| 1993 | 5 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 9 | 0 |
| 1998 | 17 | 0 |
| 1999 | 11 | 0 |
| 2000 | 7 | 0 |
| 2001 | 15 | 3 |
| 2002 | 6 | 10 |
| 2003 | 11 | 13 |
| 2004 | 7 | 18 |
| 2005 | 10 | 27 |
| 2006 | 7 | 23 |
| 2007 | 4 | 24 |
| 2008 | 4 | 29 |
| 2009 | 4 | 28 |
| 2010 | 18 | 33 |
| 2011 | 12 | 32 |
| 2012 | 21 | 28 |
| 2013 | 27 | 40 |
| 2014 | 27 | 55 |
| 2015 | 44 | 60 |
| 2016 | 34 | 53 |
| 2017 | 33 | 50 |
| 2018 | 33 | 48 |
| 2019 | 45 | 45 |
| 2020 | 35 | 45 |
| 2021 | 23 | 27 |
| 2022 | 26 | 36 |
| 2023 | 24 | 24 |
| 2024 | 25 | 28 |
| 2025 | 23 | 23 |
| 2026 | 11 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and process for converting waste plastic into a usable product22 Sep 2026US 12,742,052 B2
- Insulated sheathing panel and methods for use and manufacture thereof8 Sep 2026US 12,729,536 B2Huber Engineered Woods LLC
- Seal coated devices14 Jul 2026US 12,680,000 B2Zephyros, Inc.
- Building panels having simulated wood grain and methods of making the same19 May 2026US 12,629,870 B2Ferriot Inc.
- Insulating panel for construction with grab surface12 May 2026US 12,624,546 B2
- Wear resistant sheet for building panels and methods to produce such wear resistant sheet1 Oct 2026US 2026/0295988 A1Välinge Innovation AB
- Wall panel clip6 Aug 2026US 2026/0226748 A1Nucor Insulated Panel Group, LLC
- Adjustable block for a continuous panel manufacturing line and method of manufacturing insulated panels25 Jun 2026US 2026/0175533 A1Nucor Insulated Panel Group, LLC
- Modular wall panel assembly18 Jun 2026US 2026/0168245 A1
- Roofs and roof assemblies including porous cores and continuous fiber skins18 Jun 2026US 2026/0168249 A1Hanwha Azdel, Inc.
Most cited
By later US patents
- Flooring and method for laying and manufacturing the same174US 7,127,860 B2Välinge Innovation AB · 2006
- Panel structure and building structure made therefrom142US 4,641,468 ACano International, N.V. · 1987
- Thermoplastic structural system and components therefor and method of making same138US 5,706,620 ARoyal Building Systems (CDN) Limited · 1998
- Method of making a floorboard and method of making a floor with the floorboard131US 7,275,350 B2Välinge Innovation AB · 2007
- Modular decking plank, and decking structure124US 5,647,184 AL. B. (Plastics) Limited · 1997