B31F 5/027
By perforating
Official title: {by perforating, e.g. by folding over the partially cut part}
B31F5/027 (By perforating) appears on 27 US grants and 21 published applications in this corpus.
Search patents in B31F- Granted patents
- 27
- Published applications
- 21
- Assignees
- 18
- Inventors
- 39
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 3 |
| 2012 | 1 | 0 |
| 2013 | 0 | 3 |
| 2014 | 1 | 5 |
| 2015 | 1 | 0 |
| 2016 | 2 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 2 |
| 2019 | 1 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Apparatus and method for production of a two-ply paperboard panel8 Feb 2024US 2024/0042726 A1Star Board Materials, LLC
- Paperboard panel and method of making same23 Feb 2023US 2023/0057213 A1Star Board Materials, LLC
- Tabbed roll of sheet material and method of making same22 Dec 2022US 2022/0402718 A1Pinnacle Converting Equipment & Services, LLC
- Fitments28 Jan 2021US 2021/0024248 A1
- Paperboard panel and method of making same21 May 2020US 2020/0156348 A1Star Board Materials, LLC
Most cited
By later US patents
- Lamination anchoring method and product thereof83US 4,770,920 APaper-Pak Products, Inc. · 1988
- Image forming system24US 8,262,075 B2Fuji Xerox Co., Ltd. · 2012
- Lamination anchoring method and product thereof19US 4,735,846 APaper-Pak Products, Inc. · 1988
- Stapleless stapler12US 5,024,643 A1991
- Device for mechanically binding documents10US 5,899,841 AMetodya B & B · 1999