G21F 7/02
Observation devices permitting vision but shielding the observer
Official title: Observation devices permitting vision but shielding the observer {(optical systems per se G02)}
G21F7/02 (Observation devices permitting vision but shielding the observer) appears on 34 US grants and 27 published applications in this corpus.
Search patents in G21F- Granted patents
- 34
- Published applications
- 27
- Assignees
- 27
- Inventors
- 60
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 3 |
| 2014 | 3 | 0 |
| 2015 | 3 | 3 |
| 2016 | 2 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 3 |
| 2019 | 2 | 1 |
| 2020 | 1 | 4 |
| 2021 | 6 | 2 |
| 2022 | 3 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Display device for reducing radiation exposure to medical personnel7 Oct 2025US 12,433,551 B2Egg Medical, Inc.
- Display device for reducing radiation exposure to medical personnel16 Jan 2024US 11,872,064 B2Egg Medical, Inc.
- Containment building with a window22 Aug 2023US 11,735,328 B2Corning Incorporated
- Radio-protective shield1 Nov 2022US 11,488,738 B2Lemer Pax
- Magnetically shielded room9 Aug 2022US 11,409,192 B2TDK Corporation
- Rolling radioprotective screen20 Aug 2026US 2026/0245758 A1Lemer Pax
- Display Device For Reducing Radiation Exposure To Medical Personnel8 Jan 2026US 2026/0007375 A1Egg Medical, Inc.
- Display Device For Reducing Radiation Exposure To Medical Personnel28 Mar 2024US 2024/0099673 A1Egg Medical, Inc.
- Containment building with a window24 Nov 2022US 2022/0375642 A1Corning Incorporated
- Radio-protective shield28 Apr 2022US 2022/0130565 A1Lemer Pax
Most cited
By later US patents
- Connected moulding for use in smart building control52US 10,954,677 B1Scanalytics, Inc. · 2021
- Protective shield for arthrograms24US 4,280,056 A1981
- Radiation-shielding transparent material and method of producing the same11US 4,447,734 ANational Laboratory for High Energy Physics · 1984
- Three-piece frame assembly for window of enclosure10US 7,257,927 B2Premier Technology, Inc. · 2007
- Two-piece frame assembly for window of enclosure8US 8,297,007 B2Premier Technology, Inc. · 2012