B42D 25/26
Entrance cards
Official title: Entrance cards; Admission tickets
B42D25/26 (Entrance cards) appears on 34 US grants and 41 published applications in this corpus.
Search patents in B42D- Granted patents
- 34
- Published applications
- 41
- Assignees
- 44
- Inventors
- 103
- Latest grant
- 16 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 3 |
| 2008 | 1 | 0 |
| 2009 | 1 | 4 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 4 |
| 2014 | 2 | 0 |
| 2015 | 0 | 2 |
| 2016 | 2 | 2 |
| 2017 | 2 | 4 |
| 2018 | 0 | 5 |
| 2019 | 1 | 0 |
| 2020 | 5 | 2 |
| 2021 | 0 | 4 |
| 2022 | 2 | 1 |
| 2023 | 2 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Information coding in dendritic structures and tags16 Jan 2024US 11,875,501 B2Arizona Board of Regents on behalf of Arizona State University
- Optically variable security element having reflective surface region23 May 2023US 11,654,709 B2Giesecke+Devrient Currency Technology GmbH
- Display device9 May 2023US 11,644,732 B2Hewlett-Packard Development Company, L. P.
- Security ink system13 Dec 2022US 11,524,516 B2Gleitsmann Security Inks GmbH
- Optically variable security element29 Nov 2022US 11,511,559 B2Giesecke+Devrient Currency Technology GmbH
- System and method of using planchettes and microprinting to detect unauthorized copying or counterfeiting in articles of manufacture5 Jun 2025US 2025/0178370 A1The Government of the United States of America, as represented by the Secretary of Homeland Security
- Variable-appearance laser marking over printed layers24 Apr 2025US 2025/0130502 A1Thales Dis France SAS
- System and method of using planchettes to detect unauthorized copying or counterfeiting in articles of manufacture24 Aug 2023US 2023/0264504 A1The Government of the United States of America, as represented by the Secretary of Homeland Security
- Security Printing27 Apr 2023US 2023/0131527 A1Inovink Limited
- Holographic barcode target generator29 Dec 2022US 2022/0413435 A1Conduent Business Services, LLC
Most cited
By later US patents
- Time indicator having discrete adhesive172US 5,446,705 ATemtec, Inc. · 1995
- Credit card100US 5,259,649 A1993
- Identification and access card with associated optical decoding means95US 4,066,873 AThe First National Bank of Chicago · 1978
- Method for assembly and activation of a reusable security identification badge77US 5,364,132 AS.J.A. Trust · 1994
- Visiting card marked with discriminating symbols and a method of and an apparatus for reading what is printed on said visiting card70US 4,795,894 A1989