B31B 50/44
By plungers moving through folding dies
Official title: by plungers moving through folding dies
B31B50/44 (By plungers moving through folding dies) appears on 379 US grants and 217 published applications in this corpus.
Search patents in B31B- Granted patents
- 379
- Published applications
- 217
- Assignees
- 173
- Inventors
- 457
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 12 | 0 |
| 1978 | 6 | 0 |
| 1979 | 4 | 0 |
| 1980 | 6 | 0 |
| 1981 | 10 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 10 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 12 | 0 |
| 1993 | 10 | 0 |
| 1994 | 8 | 0 |
| 1995 | 3 | 0 |
| 1996 | 14 | 0 |
| 1997 | 27 | 0 |
| 1998 | 13 | 0 |
| 1999 | 10 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 2 |
| 2003 | 4 | 4 |
| 2004 | 2 | 2 |
| 2005 | 0 | 5 |
| 2006 | 0 | 6 |
| 2007 | 0 | 6 |
| 2008 | 5 | 5 |
| 2009 | 4 | 7 |
| 2010 | 4 | 4 |
| 2011 | 5 | 11 |
| 2012 | 3 | 16 |
| 2013 | 10 | 8 |
| 2014 | 7 | 14 |
| 2015 | 12 | 11 |
| 2016 | 9 | 10 |
| 2017 | 16 | 13 |
| 2018 | 19 | 17 |
| 2019 | 11 | 11 |
| 2020 | 10 | 11 |
| 2021 | 9 | 9 |
| 2022 | 12 | 6 |
| 2023 | 11 | 15 |
| 2024 | 9 | 11 |
| 2025 | 10 | 7 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus and a method for producing dish-shaped product packages29 Sep 2026US 12,746,733 B2Jospak Oy
- Method for manufacturing food packaging paper tray that can be easily separated and discarded15 Sep 2026US 12,734,779 B2
- Apparatus and method for wrapping a cardboard box28 Apr 2026US 12,611,835 B2Emmeci S.P.A.
- Egg carton and formation apparatus and method17 Feb 2026US 12,552,596 B2Consider Provisions, LLC
- Trays for food products and related systems and methods13 Jan 2026US 12,522,398 B2Graphic Packaging International, Inc.
- Carrier for retaining and transporting blanks, packaging trays and packaging items21 May 2026US 2026/0138347 A1Koch Pac-Systeme GmbH
- Arrangement to mount onto a horizontal-type automatic adhesive-free corrugated cardboard box machine and box mounting method21 May 2026US 2026/0138348 A1Cartocor S.A
- Arrangement to mount onto a vertical-type automatic adhesive-free corrugated cardboard box machine and box mounting method21 May 2026US 2026/0138349 A1Cartocor S.A
- Trays for food products and related systems and methods23 Apr 2026US 2026/0109509 A1Graphic Packaging International, Inc.
- Methods and systems for forming trays5 Feb 2026US 2026/0034758 A1Graphic Packaging International, Inc.
Most cited
By later US patents
- Article forming system696US 4,773,182 AHighland Supply Corporation · 1988
- Apparaus of making a flower pot or flower pot cover with controlled pleats374US 5,073,161 AHighland Supply Corporation · 1991
- Flower pot or flower pot cover having connected and unconnected segments in the skirt341US 5,152,100 AHighland Supply Corporation · 1992
- Covering for flower pot and floral grouping266US 5,307,606 AHighland Supply Corporation · 1994
- Flat-paneled flower pot or flower pot cover die136US 5,127,817 AHighland Supply Corporation · 1992