H01P 1/195
Having a toroidal shape
Official title: having a toroidal shape
H01P1/195 (Having a toroidal shape) appears on 29 US grants and 9 published applications in this corpus.
Search patents in H01P- Granted patents
- 29
- Published applications
- 9
- Assignees
- 11
- Inventors
- 41
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 2 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Spherical dielectric structures for storing electromagnetic energy28 Oct 2025US 12,456,786 B2
- Reduced size phase shifter28 Apr 2020US 10,637,119 B2Aselsan Elektronik Sanayi Ve Ticaret Anonim Sirketi
- High average RF power resistant ferrite phase shifter28 Apr 2020US 10,637,120 B2Aselsan Elektronik Sanayi Ve Ticaret Anonim Sirketi
- Two-dimensional electronically steerable antenna24 Oct 2017US 9,799,955 B2Honeywell International Inc.
- Systems and methods for injection molded phase shifter24 Mar 2015US 8,988,304 B2Honeywell International Inc.
- Spherical dielectric structures for storing electromagnetic energy11 Apr 2024US 2024/0120628 A1
- Apparatus and method for baseboard system used in drywall construction21 Dec 2023US 2023/0411814 A1
- Reduced size phase shifter11 Jul 2019US 2019/0214696 A1Aselsan Elektronik Sanayi Ve Ticaret Anonim Sirketi
- High average rf power resistant ferrite phase shifter11 Jul 2019US 2019/0214697 A1Aselsan Elektronik Sanayi Ve Ticaret Anonim Sirketi
- Two-dimensional electronically steerable antenna8 Dec 2016US 2016/0359229 A1Honeywell International Inc.
Most cited
By later US patents
- Planar ferrite toroid microwave phase shifter31US 5,828,271 ANorthrop Grumman Corporation · 1998
- Hybrid mode RF phase shifter and variable power divider using the same22US 5,075,648 AElectromagnetic Sciences, Inc. · 1991
- Coax to rectangular waveguide coupler16US 4,349,790 ARCA Corporation · 1982
- Method and apparatus for fast-switching dual-toroid microwave phase shifter14US 4,445,098 AElectromagnetic Sciences, Inc. · 1984
- Microwave oven cavity excitation system providing controlled electric field shape for uniformity of energy distribution12US 4,324,968 AGeneral Electric Company · 1982