G07D 7/10
Microwaves
G07D7/10 (Microwaves) appears on 20 US grants and 11 published applications in this corpus.
Search patents in G07D- Granted patents
- 20
- Published applications
- 11
- Assignees
- 17
- Inventors
- 39
- Latest grant
- 5 Sep 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Coded polymer substrates for banknote authentication5 Sep 2023US 11,747,268 B2Spectra Systems Corporation
- Microwave reflectometry for physical inspections16 Feb 2021US 10,921,264 B2The Curators of the University of Missouri
- Apparatus for chemical concentration determination using microwave spectroscopy1 Dec 2020US 10,852,251 B2Nokomis, Inc.
- Use of radiofrequency wave absorbing markets for the authentication of security documents28 May 2019US 10,302,577 B2Consejo Superior De Investigaciones Cientificas (Csic)
- Use of radiofrequency wave absorbing markets for the authentication of security documents28 Feb 2017US 9,581,557 B2Consejo Superior De Investigaciones Cientificas (Csic)
- Forgery prevention structure, forgery prevention medium, and method for inspecting forgery prevention structure9 Jul 2020US 2020/0215842 A1Glory Ltd.
- Microwave reflectometry for physical inspections25 Jul 2019US 2019/0227003 A1The Curators of the University of Missouri
- Coded polymer substrates for banknote authentication6 Sep 2018US 2018/0252637 A1Spectra Systems Corporation
- Use of radiofrequency wave absorbing markets for the authentication of security documents4 May 2017US 2017/0122881 A1Consejo Superior De lnvestigaciones Cientificas, C.S.l.C.
- Apparatus for chemical concentration determination using microwave spectroscopy28 Apr 2016US 2016/0116422 A1Nokomis, Inc.
Most cited
By later US patents
- Method and apparatus for checking the authenticity of documents194US 4,820,912 AN. V. Bekaert S. A. · 1989
- Microwave security thread detector122US 5,279,403 ACrane Co. · 1994
- Machine readable and visually verifiable security threads and security papers employing same38US 5,639,126 ACrane Co. · 1997
- Process and apparatus for identifying articles of sheet material by means of microwaves9US 4,566,121 A1986
- Sheet articles of non-conductive material marked for identification purposes, and method and apparatus for identifying such articles8US 4,408,156 AN. V. Bekaert S. A. · 1983