H05H 1/30
Using applied electromagnetic fields
Official title: using applied electromagnetic fields, e.g. high frequency or microwave energy (H05H1/28 takes precedence)
H05H1/30 (Using applied electromagnetic fields) appears on 370 US grants and 375 published applications in this corpus.
Search patents in H05H- Granted patents
- 370
- Published applications
- 375
- Assignees
- 232
- Inventors
- 743
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 7 | 0 |
| 1992 | 7 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 4 | 0 |
| 2002 | 4 | 6 |
| 2003 | 5 | 9 |
| 2004 | 8 | 14 |
| 2005 | 6 | 21 |
| 2006 | 10 | 6 |
| 2007 | 8 | 14 |
| 2008 | 7 | 13 |
| 2009 | 4 | 8 |
| 2010 | 11 | 9 |
| 2011 | 7 | 17 |
| 2012 | 6 | 12 |
| 2013 | 9 | 11 |
| 2014 | 14 | 28 |
| 2015 | 13 | 25 |
| 2016 | 21 | 27 |
| 2017 | 27 | 18 |
| 2018 | 15 | 14 |
| 2019 | 30 | 15 |
| 2020 | 15 | 13 |
| 2021 | 13 | 14 |
| 2022 | 3 | 18 |
| 2023 | 12 | 19 |
| 2024 | 18 | 21 |
| 2025 | 23 | 15 |
| 2026 | 3 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Plasma apparatus and methods for processing feed material utilizing an upstream swirl module and composite gas flows25 Aug 2026US 12,719,024 B26K Inc.
- Plasma torch device component monitoring21 Apr 2026US 12,610,448 B2Edwards Limited
- Apparatus for treating materials with plasma17 Feb 2026US 12,551,861 B2Directa Plus S.p.A.
- Inductively coupled plasma torch structure with protected injector23 Dec 2025US 12,507,337 B2Elemental Scientific, Inc.
- Apparatuses and methods for producing covetic materials using microwave reactors9 Dec 2025US 12,492,460 B2Lyten, Inc.
- Method and apparatus for producing metallic silicon1 Oct 2026US 2026/0297732 A1Honda Motor Co., Ltd.
- Rf coil resonator systems and methods17 Sep 2026US 2026/0282203 A1Standard BioTools Canada Inc.
- Coherent or pristine graphene in a polymer matrix16 Jul 2026US 2026/0201532 A1Lyten, Inc.
- Powder processing device using microwave torch plasma having high density in edge area2 Jul 2026US 2026/0185203 A1Korea Institute of Fusion Energy
- Plasma cyclone calcination reactor design18 Jun 2026US 2026/0166507 A1Saltx Technology AB
Most cited
By later US patents
- High frequency induction coupled plasma torch with concentric pipes having flanges thereon477US 4,578,560 ASumitomo Electric Industries, Ltd. · 1986
- Processes depending on plasma generation using a helical resonator178US 4,918,031 AAmerican Telephone and Telegraph Company, AT&T Bell Laboratories · 1990
- Multi-coil induction plasma torch for solid state power supply141US 6,919,527 B2Tekna Plasma Systems Inc. · 2005
- High performance induction plasma torch with a water-cooled ceramic confinement tube136US 5,200,595 AUniversite de Sherbrooke · 1993
- Very high power microwave-induced plasma121US 6,362,449 B1Massachusetts Institute of Technology · 2002