B42D 25/41
Using electromagnetic radiation
Official title: using electromagnetic radiation (B42D25/435 takes precedence)
B42D25/41 (Using electromagnetic radiation) appears on 480 US grants and 589 published applications in this corpus.
Search patents in B42D- Granted patents
- 480
- Published applications
- 589
- Assignees
- 244
- Inventors
- 984
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 6 | 0 |
| 1987 | 7 | 0 |
| 1988 | 8 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 1 |
| 2002 | 3 | 0 |
| 2003 | 3 | 9 |
| 2004 | 4 | 7 |
| 2005 | 2 | 12 |
| 2006 | 3 | 11 |
| 2007 | 9 | 13 |
| 2008 | 5 | 18 |
| 2009 | 2 | 19 |
| 2010 | 10 | 17 |
| 2011 | 9 | 32 |
| 2012 | 14 | 19 |
| 2013 | 25 | 25 |
| 2014 | 16 | 31 |
| 2015 | 20 | 24 |
| 2016 | 12 | 24 |
| 2017 | 22 | 42 |
| 2018 | 28 | 28 |
| 2019 | 44 | 36 |
| 2020 | 27 | 41 |
| 2021 | 35 | 47 |
| 2022 | 23 | 39 |
| 2023 | 21 | 25 |
| 2024 | 27 | 30 |
| 2025 | 32 | 26 |
| 2026 | 12 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device for processing documents29 Sep 2026US 12,746,775 B2MB AUTOMATION GmbH & Co. KG
- Optical devices and methods of manufacture thereof4 Aug 2026US 12,697,833 B2De La Rue International Limited
- Optical security device based on a surface of revolution19 May 2026US 12,632,002 B2Viavi Solutions Inc.
- Warm-up target for a laser engraver12 May 2026US 12,623,301 B2Assa Abloy AB
- Personalized plastic identification document with lens structure28 Apr 2026US 12,611,886 B2Entrust Corporation
- Personalizable security document and method of personalizing the same10 Sep 2026US 2026/0264443 A1HID Global CID SAS
- Tactile latent information in an inkjet printed layer on identity cards3 Sep 2026US 2026/0257509 A1IAI industrial systems B.V.
- Latent information on a transparent layer on identity cards3 Sep 2026US 2026/0257510 A1IAI industrial systems B.V.
- Security document, system for producing a security document, and method for producing a security document27 Aug 2026US 2026/0249639 A1OVD Kinegram AG
- Method for manufacturing a security device, security device obtained by such a method, and identity document comprising such a device30 Jul 2026US 2026/0217050 A1IN Smart Identity France
Most cited
By later US patents
- Credit card and method of making the same254US 4,897,533 ANational Business Systems, Inc. · 1990
- Data carrier having an optical authenticity feature and methods for producing and testing said data carrier249US 4,765,656 AGAO Gesellschaft fur Automation und Organisation mbH · 1988
- Method and apparatus for protecting visual information with printed cryptographic watermarks153US 5,488,664 AYeda Research and Development Co. Ltd. · 1996
- Emerging security features for identification documents148US 7,213,757 B2Digimarc Corporation · 2007
- Increased-security identification card system144US 5,284,364 AAnvik Corporation · 1994