B42D 3/06
Book covers: with hinges
Official title: with hinges {(covers of loose-leaf binders with hinges B42F13/002)}
B42D3/06 (Book covers: with hinges) appears on 30 US grants and 29 published applications in this corpus.
Search patents in B42D- Granted patents
- 30
- Published applications
- 29
- Assignees
- 22
- Inventors
- 60
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 3 |
| 2010 | 2 | 1 |
| 2011 | 2 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 1 | 3 |
| 2016 | 3 | 2 |
| 2017 | 1 | 2 |
| 2018 | 1 | 2 |
| 2019 | 3 | 0 |
| 2020 | 0 | 2 |
| 2021 | 2 | 3 |
| 2022 | 2 | 2 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Layer structure for producing a hinge, in particular for producing multi-layered book covers17 Mar 2026US 12,576,625 B2Covestro Deutschland AG
- Self-supporting book30 May 2023US 11,660,901 B2Kermit Zarley Enterprises
- Book workstation for paired users20 Sep 2022US 11,446,948 B1
- Flexible binding mechanism6 Sep 2022US 11,433,698 B2ACCO Brands Corporation
- Flexible binding mechanism15 Jun 2021US 11,034,183 B2ACCO Brands Corporation
- Protective case7 May 2026US 2026/0124847 A1Board Boys, LLC
- Machine tool for producing a workpiece of predefined length21 Nov 2024US 2024/0383052 A1Phoenix Contact GmbH & Co.KG
- Layer structure for producing a hinge, in particular for producing multi-layered book covers16 Jun 2022US 2022/0184988 A1Covestro Intellectual Property GmbH & Co.KG
- Childrens Character Journal13 Jan 2022US 2022/0009266 A1
- Loose-leaf binder and process of producing same4 Nov 2021US 2021/0339549 A1
Most cited
By later US patents
- Hinge for thermoplastic material27US 4,482,417 AJostens, Inc. · 1984
- Hinge for personal leather goods27US 5,394,913 ASamsonite Corporation · 1995
- End leaf and binding element containing such an end leaf13US 6,746,050 B2Unibind (Cyprus) Limited · 2004
- Continuous flexible hinge for paperboard and the like11US 4,147,380 AThe Mead Corporation · 1979
- Reinforced hinge for book cover10US 4,405,156 ABook Covers Inc. · 1983