G01R 29/0821
Rooms and test sites therefor
Official title: {rooms and test sites therefor, e.g. anechoic chambers, open field sites or TEM cells (for testing antennas G01R29/105)}
G01R29/0821 (Rooms and test sites therefor) appears on 255 US grants and 249 published applications in this corpus.
Search patents in G01R- Granted patents
- 255
- Published applications
- 249
- Assignees
- 175
- Inventors
- 653
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 1 |
| 2002 | 5 | 7 |
| 2003 | 7 | 5 |
| 2004 | 5 | 4 |
| 2005 | 5 | 3 |
| 2006 | 2 | 7 |
| 2007 | 4 | 3 |
| 2008 | 6 | 5 |
| 2009 | 3 | 4 |
| 2010 | 3 | 7 |
| 2011 | 3 | 9 |
| 2012 | 2 | 7 |
| 2013 | 8 | 13 |
| 2014 | 7 | 20 |
| 2015 | 7 | 5 |
| 2016 | 14 | 4 |
| 2017 | 3 | 4 |
| 2018 | 11 | 17 |
| 2019 | 9 | 15 |
| 2020 | 20 | 21 |
| 2021 | 19 | 21 |
| 2022 | 16 | 9 |
| 2023 | 16 | 21 |
| 2024 | 14 | 13 |
| 2025 | 17 | 16 |
| 2026 | 8 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method for measurement of radio frequency signal pattern using plane wave22 Sep 2026US 12,742,807 B2Yttek Technology Corp.
- Wireless performance testing method and system based on quiet zone expansion in a compact antenna test range15 Sep 2026US 12,736,568 B2Catarc Automotive Test Center (Tianjin) Co., Ltd
- Adapter arrangement for automated characterization of antennas1 Sep 2026US 12,724,053 B2Gapwaves AB
- Method and system for aligning test environments11 Aug 2026US 12,704,536 B2MediaTek Singapore Pte. Ltd.
- EMC scattering apparatus9 Jun 2026US 12,650,453 B2International Business Machines Corporation
- Test system and apparatus for over-the-air testing of devices and antennas17 Sep 2026US 2026/0276689 A1Ul LLC
- Reverberation chamber and measurement system comprising the same20 Aug 2026US 2026/0243812 A1Antennex Holding B.V.
- Mode stirrer and electromagnetic reverberation chamber including mode stirrer2 Jul 2026US 2026/0188886 A1Electronics and Telecommunications Research Institute
- Mode stirrer and electromagnetic reverberation chamber including mode stirrer4 Jun 2026US 2026/0153547 A1Electronics and Telecommunications Research Institute
- Low scattering turntable for improving quiet zone test performance and quiet zone test method19 Feb 2026US 2026/0050018 A1Catarc Automotive Test Center (Tianjin) Co., Ltd
Most cited
By later US patents
- Protable radio terminal testing apparatus using single self-complementary antenna180US 6,839,032 B2Anritsu Corporation · 2005
- Shielded enclosure for testing wireless communication devices74US 6,657,214 B1EMC Test Systems, L.P. · 2003
- Communication system fault location using signal ingress detection46US 8,143,900 B2ComSonics, Inc. · 2012
- Apparatus and method for production testing of the RF performance of wireless communications devices42US 6,525,657 B1Aprel, Inc. · 2003
- Compact broadband antenna for field generation applications34US 5,926,150 ATactical Systems Research, Inc. · 1999