B31B 50/26
Folding sheets, blanks or webs
B31B50/26 (Folding sheets, blanks or webs) appears on 1,467 US grants and 1,257 published applications in this corpus.
Search patents in B31B- Granted patents
- 1,467
- Published applications
- 1,257
- Assignees
- 627
- Inventors
- 1,977
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 25 | 0 |
| 1978 | 19 | 0 |
| 1979 | 12 | 0 |
| 1980 | 17 | 0 |
| 1981 | 26 | 0 |
| 1982 | 18 | 0 |
| 1983 | 7 | 0 |
| 1984 | 14 | 0 |
| 1985 | 14 | 0 |
| 1986 | 20 | 0 |
| 1987 | 21 | 0 |
| 1988 | 15 | 0 |
| 1989 | 6 | 0 |
| 1990 | 8 | 0 |
| 1991 | 21 | 0 |
| 1992 | 27 | 0 |
| 1993 | 18 | 0 |
| 1994 | 14 | 0 |
| 1995 | 11 | 0 |
| 1996 | 29 | 0 |
| 1997 | 53 | 0 |
| 1998 | 47 | 0 |
| 1999 | 28 | 0 |
| 2000 | 17 | 0 |
| 2001 | 15 | 3 |
| 2002 | 8 | 6 |
| 2003 | 14 | 16 |
| 2004 | 5 | 14 |
| 2005 | 10 | 22 |
| 2006 | 9 | 22 |
| 2007 | 4 | 24 |
| 2008 | 12 | 23 |
| 2009 | 11 | 22 |
| 2010 | 15 | 23 |
| 2011 | 11 | 36 |
| 2012 | 20 | 43 |
| 2013 | 31 | 42 |
| 2014 | 40 | 71 |
| 2015 | 35 | 77 |
| 2016 | 47 | 50 |
| 2017 | 63 | 80 |
| 2018 | 63 | 80 |
| 2019 | 54 | 96 |
| 2020 | 71 | 101 |
| 2021 | 76 | 69 |
| 2022 | 77 | 75 |
| 2023 | 81 | 72 |
| 2024 | 67 | 72 |
| 2025 | 69 | 74 |
| 2026 | 53 | 44 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B31B 50/44By plungers moving through folding dies379
- B31B 50/28Around mandrels368
- B31B 50/52By reciprocating or oscillating members257
- B31B 50/262Involving folding, leading, or trailing flaps of blanks174
- B31B 50/36By continuously feeding the sheets, blanks or webs to stationary members143
- B31B 50/58By moving endless belts or chains51
- B31B 50/56By rotary members co-operating with blades23
- B31B 50/585By air jets13
Recent patents
- Guide position adjustment device, folder gluer and box making machine, and folding guide position adjustment method6 Oct 2026US 12,752,505 B2Mitsubishi Heavy Industries Machinery Systems, Ltd.
- Apparatus and a method for producing dish-shaped product packages29 Sep 2026US 12,746,733 B2Jospak Oy
- Slide rail base and auxiliary folding fixture22 Sep 2026US 12,741,439 B2
- Insulated box22 Sep 2026US 12,741,800 B2Pratt Retail Specialties, LLC
- Insulated box22 Sep 2026US 12,741,801 B2Pratt Retail Specialties, LLC
- Divider construct for trays, related systems and methods8 Oct 2026US 2026/0307851 A1Graphic Packaging International, Inc.
- Carton with locking features8 Oct 2026US 2026/0307852 A1Graphic Packaging International, Inc.
- Fibre based packaging container, circular base component, quadrilateral wall blank, method of manufacture of a fibre based packaging container and container obtainable from said method1 Oct 2026US 2026/0296713 A1Transcend Packaging Limited
- Paper protective case for clip-on packaging and device for manufacturing the same24 Sep 2026US 2026/0285536 A1Kingston Digital, Inc.
- Modular box assembly24 Sep 2026US 2026/0287247 A1Pratt Retail Specialties, LLC
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
- Articles of manufacture and methods for manufacturing laminate structures including inorganically filled sheets312US 5,830,548 AE. Khashoggi Industries · 1998
- Covering for flower pot and floral grouping266US 5,307,606 AHighland Supply Corporation · 1994