B31B 50/81
Forming or attaching accessories
Official title: Forming or attaching accessories, e.g. opening devices, closures or tear strings
B31B50/81 (Forming or attaching accessories) appears on 1,008 US grants and 748 published applications in this corpus.
Search patents in B31B- Granted patents
- 1,008
- Published applications
- 748
- Assignees
- 438
- Inventors
- 1,365
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 18 | 0 |
| 1977 | 17 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 14 | 0 |
| 1981 | 21 | 0 |
| 1982 | 15 | 0 |
| 1983 | 6 | 0 |
| 1984 | 7 | 0 |
| 1985 | 15 | 0 |
| 1986 | 14 | 0 |
| 1987 | 9 | 0 |
| 1988 | 12 | 0 |
| 1989 | 13 | 0 |
| 1990 | 15 | 0 |
| 1991 | 20 | 0 |
| 1992 | 17 | 0 |
| 1993 | 21 | 0 |
| 1994 | 21 | 0 |
| 1995 | 15 | 0 |
| 1996 | 37 | 0 |
| 1997 | 62 | 0 |
| 1998 | 46 | 0 |
| 1999 | 27 | 0 |
| 2000 | 25 | 0 |
| 2001 | 21 | 12 |
| 2002 | 21 | 22 |
| 2003 | 12 | 22 |
| 2004 | 11 | 29 |
| 2005 | 13 | 28 |
| 2006 | 19 | 25 |
| 2007 | 6 | 22 |
| 2008 | 12 | 22 |
| 2009 | 9 | 14 |
| 2010 | 9 | 27 |
| 2011 | 7 | 21 |
| 2012 | 14 | 33 |
| 2013 | 15 | 28 |
| 2014 | 18 | 46 |
| 2015 | 29 | 58 |
| 2016 | 29 | 46 |
| 2017 | 33 | 56 |
| 2018 | 40 | 40 |
| 2019 | 48 | 41 |
| 2020 | 28 | 30 |
| 2021 | 29 | 20 |
| 2022 | 21 | 25 |
| 2023 | 29 | 37 |
| 2024 | 29 | 15 |
| 2025 | 18 | 19 |
| 2026 | 13 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B31B 50/84Forming or attaching means for filling or dispensing contents161
- B31B 50/812Applying tabs, patches, strips or strings on blanks or webs136
- B31B 50/86Forming integral handles75
- B31B 50/82Forming or attaching windows68
- B31B 50/811Applying strips, strings, laces or ornamental edgings to formed boxes40
- B31B 50/814Applying closure elements to blanks, webs or boxes34
Recent patents
- Insulated container and method of forming and loading an insulated container1 Sep 2026US 12,722,868 B1
- Insulated container and method of forming and loading an insulated container1 Sep 2026US 12,722,869 B1
- Container with denesting features14 Jul 2026US 12,679,595 B2Graphic Packaging International, Inc.
- Insulated container and method of forming and loading an insulated container30 Jun 2026US 12,668,410 B1
- Packing box, toner container, and method of assembling packing box2 Jun 2026US 12,643,708 B2Ricoh Company, Ltd.
- Method for producing objects24 Sep 2026US 2026/0284998 A1Sacmi Cooperativa Meccanici Imola Societa' Cooperativa
- System and a method for manufacturing screw caps from cardboard or paperboard13 Aug 2026US 2026/0233485 A1Länsipahvi Oy
- Packaging box showing different open and closed images, method of preparing the same, and applications of the same4 Jun 2026US 2026/0152316 A1China Tobacco Yunnan Industrial Co., Ltd
- Hinged wrap insulated container21 May 2026US 2026/0138808 A1Pratt Retail Specialties, LLC
- Tray with divider features30 Apr 2026US 2026/0116615 A1Graphic Packaging International, Inc.
Most cited
By later US patents
- Article forming system696US 4,773,182 AHighland Supply Corporation · 1988
- Method of shaping and holding a sheet of material about a flower pot with a collar598US 4,835,834 AHighland Supply Corporation · 1989
- Wrapping a floral grouping with sheets having adhesive or cohesive material applied thereto507US 5,181,364 AHighland Supply Corporation · 1993
- Flower pot or flower pot cover having connected and unconnected segments in the skirt341US 5,152,100 AHighland Supply Corporation · 1992
- Attaching an electronic circuit to a substrate274US 5,566,441 ABritish Technology Group Limited · 1996