H01P 9/02
Helical lines
H01P9/02 (Helical lines) appears on 25 US grants and 19 published applications in this corpus.
Search patents in H01P- Granted patents
- 25
- Published applications
- 19
- Assignees
- 18
- Inventors
- 47
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 3 | 5 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 2 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 2 |
| 2017 | 2 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 2 |
| 2024 | 0 | 0 |
| 2025 | 2 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Temperature insensitive inductor23 Sep 2025US 12,424,372 B2LRT Sensors LLC
- Position sensing apparatus having internal target rod with remote electronics for harsh environments7 Jan 2025US 12,188,796 B2LRT Sensors LLC
- Process of manufacturing an open pattern inductor27 Mar 2018US 9,929,229 B2Micron Technology, Inc.
- Time delay unit comprising a spirally wound meandering line pattern14 Nov 2017US 9,819,068 B2Raytheon Company
- Frequency selective limiter18 Jul 2017US 9,711,839 B2Raytheon Company
- Impedance transforming tapered couplers8 Oct 2026US 2026/0312271 A1Qorvo US, Inc.
- Slow-wave structure, traveling-wave tube, and communication apparatus29 Jan 2026US 2026/0031297 A1Huawei Technologies Co., Ltd.
- Temperature insensitive inductor30 Nov 2023US 2023/0386724 A1LRT Sensors LLC
- Position sensing apparatus having internal target rod with remote electronics for harsh environments8 Jun 2023US 2023/0175869 A1LRT Sensors LLC
- Frequency selective limiter23 Jun 2016US 2016/0181679 A1Raytheon Company
Most cited
By later US patents
- Electric field generator incorporating a slow-wave structure228US 7,656,167 B1TDK Corporation · 2010
- Coaxial shielded helical delay line and process49US 4,729,510 AITT Corporation · 1988
- Open pattern inductor41US 6,566,731 B2Micron Technology, Inc. · 2003
- Method of forming an inductor32US 7,380,328 B2Micron Technology, Inc. · 2008
- Phase delay line for collinear array antenna30US 6,222,494 B1Agere Systems Guardian Corp. · 2001