F42C 13/023
Using active distance measurement
Official title: {using active distance measurement}
F42C13/023 (Using active distance measurement) appears on 66 US grants and 21 published applications in this corpus.
Search patents in F42C- Granted patents
- 66
- Published applications
- 21
- Assignees
- 36
- Inventors
- 105
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 3 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 2 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 3 | 2 |
| 2020 | 2 | 2 |
| 2021 | 2 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for testing optical proximity fuses17 Feb 2026US 12,553,697 B2Rafael Advanced Defense Systems Ltd.
- Bomb fuze initiator4 Nov 2025US 12,460,912 B2Junghans T2M SAS
- Accurate range-to-go for command detonation8 Feb 2022US 11,243,058 B2BAE Systems Information and Electronic Systems Integration Inc.
- Proximity fuse having an E-field sensor2 Mar 2021US 10,935,357 B2BAE Systems Information and Electronic Systems Integration Inc.
- Digital active optical target detection system19 Jan 2021US 10,895,640 B2Raytheon Company
- System and method for testing optical proximity fuses19 Jun 2025US 2025/0198734 A1Rafael Advanced Defense Systems Ltd.
- Bomb fuze initiator29 Aug 2024US 2024/0288256 A1Junghans T2M SAS
- Accurate range-to-go for command detonation12 Mar 2020US 2020/0080826 A1BAE Systems Information and Electronic Systems Integration Inc.
- Establishing a time zero for time delay detonation12 Mar 2020US 2020/0081025 A1BAE Systems Information and Electronic Systems Integration Inc.
- Proximity fuse having an e-field sensor31 Oct 2019US 2019/0331470 A1BAE Systems Information and Electronic Systems Integration Inc.
Most cited
By later US patents
- Optical detection device157US 5,142,985 AMotorola, Inc. · 1992
- Laser proximity sensor48US 4,733,609 ADigital Signal Corporation · 1988
- Time to intercept measuring apparatus38US 3,964,695 A1976
- Proximity fuze32US 4,859,054 AThe United States of America as represented by the United States Department of Energy · 1989
- Deviation indicator with infrared imagery and system for automatically aiming at and tracking a target22US 9,367,741 B2Mbda France · 2016