B31B 2120/50
Covered or externally reinforced
Official title: covered or externally reinforced
B31B2120/50 (Covered or externally reinforced) appears on 119 US grants and 125 published applications in this corpus.
Search patents in B31B- Granted patents
- 119
- Published applications
- 125
- Assignees
- 56
- Inventors
- 190
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 4 |
| 2003 | 4 | 1 |
| 2004 | 2 | 2 |
| 2005 | 0 | 3 |
| 2006 | 1 | 4 |
| 2007 | 3 | 4 |
| 2008 | 0 | 5 |
| 2009 | 5 | 6 |
| 2010 | 6 | 7 |
| 2011 | 4 | 3 |
| 2012 | 1 | 6 |
| 2013 | 2 | 3 |
| 2014 | 4 | 6 |
| 2015 | 3 | 3 |
| 2016 | 2 | 4 |
| 2017 | 4 | 5 |
| 2018 | 2 | 7 |
| 2019 | 3 | 4 |
| 2020 | 5 | 3 |
| 2021 | 5 | 9 |
| 2022 | 3 | 5 |
| 2023 | 6 | 15 |
| 2024 | 7 | 5 |
| 2025 | 7 | 8 |
| 2026 | 8 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Insulated box22 Sep 2026US 12,741,800 B2Pratt Retail Specialties, LLC
- Insulated box22 Sep 2026US 12,741,801 B2Pratt Retail Specialties, LLC
- Insulated box18 Aug 2026US 12,709,453 B2Pratt Retail Specialties, LLC
- Insulated box30 Jun 2026US 12,668,412 B2Pratt Retail Specialties, LLC
- Apparatus and method for wrapping a cardboard box5 May 2026US 12,617,172 B2Emmeci S.P.A.
- Hinged wrap insulated container21 May 2026US 2026/0138808 A1Pratt Retail Specialties, LLC
- Capsule intended for receiving a substance for preparing a beverage, and production method14 May 2026US 2026/0131964 A1Brain Corporation
- A method for manufacturing a cellulose product and a cellulose product7 May 2026US 2026/0124784 A1PulPac AB
- Double-layered foamed paper container and manufacturing method thereof30 Oct 2025US 2025/0332803 A1
- Tray for food products30 Oct 2025US 2025/0333203 A1Graphic Packaging International, Inc.
Most cited
By later US patents
- Heat insulating paper cups87US 6,129,653 AFort James Corporation · 2000
- Heat insulating paper cups80US 6,308,883 B1Fort James Corporation · 2001
- Insulated box79US 10,954,057 B2Pratt Retail Specialties, LLC · 2021
- Method for fabricating heat insulating paper cups79US 6,139,665 AFort James Corporation · 2000
- Insulated box68US 11,117,731 B2Pratt Retail Specialties, LLC · 2021