D21H 21/42
Ribbons or strips
Official title: Ribbons or strips (filaments D21H15/06)
D21H21/42 (Ribbons or strips) appears on 96 US grants and 102 published applications in this corpus.
Search patents in D21H- Granted patents
- 96
- Published applications
- 102
- Assignees
- 53
- Inventors
- 224
- Latest grant
- 18 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 3 |
| 2003 | 3 | 0 |
| 2004 | 1 | 1 |
| 2005 | 2 | 8 |
| 2006 | 0 | 4 |
| 2007 | 2 | 8 |
| 2008 | 2 | 5 |
| 2009 | 1 | 10 |
| 2010 | 4 | 9 |
| 2011 | 2 | 8 |
| 2012 | 3 | 3 |
| 2013 | 8 | 5 |
| 2014 | 2 | 4 |
| 2015 | 1 | 8 |
| 2016 | 6 | 7 |
| 2017 | 3 | 3 |
| 2018 | 2 | 6 |
| 2019 | 4 | 1 |
| 2020 | 4 | 2 |
| 2021 | 1 | 2 |
| 2022 | 1 | 2 |
| 2023 | 1 | 1 |
| 2024 | 3 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Multi-layer printing substrate with hidden information18 Mar 2025US 12,252,846 B2Landqart
- Method for fabrication of non-spherical/asymmetric fine particles by using glass-coated metal wires22 Oct 2024US 12,121,974 B2University-Industry Cooperation Group of Kyung Hee University
- Methods for verifying the authenticity of products2 Jul 2024US 12,024,825 B2Omya International AG
- Multi-luminescent security element and value or security product containing said security element23 Jan 2024US 11,879,083 B2Bundesdruckerei GmbH
- Volume hologram sheet to be embedded, forgery prevention paper, and card7 Mar 2023US 11,597,230 B2Dai Nippon Printing Co.Ltd.
- Luminescent printing ink for security printing, item having luminescent feature, and production method17 Apr 2025US 2025/0122394 A1Giesecke+Devrient Currency Technology GmbH
- Micro-optic security device with enhanced wet-harvest resistance29 Aug 2024US 2024/0287739 A1Crane Co.
- Multi-layer printing substrate with hidden information18 May 2023US 2023/0151551 A1Landqart
- Printable component modules with flexible, polymer, or organic module substrates8 Sep 2022US 2022/0285291 A1X-Celeprint Limited
- Multi-Luminescent Security Element and Value or Security Product Containing Said Security Element23 Jun 2022US 2022/0195293 A1Bundesdruckerei GmbH
Most cited
By later US patents
- Security threads125US 5,465,301 APortals (Bathford) Limited · 1995
- Security devices76US 4,186,943 AThe Governor and Company of the Bank of England · 1980
- Security paper for bank notes and the like73US 4,943,093 APortals Limited · 1990
- Credit and identification cards having pieces of diffraction grating therein70US 4,547,002 AU.S. Banknote Corporation · 1985
- Secure event tickets70US 5,265,916 AMoore Business Forms, Inc. · 1993