C21D 1/38
Heating by cathodic discharges
C21D1/38 (Heating by cathodic discharges) appears on 57 US grants and 55 published applications in this corpus.
Search patents in C21D- Granted patents
- 57
- Published applications
- 55
- Assignees
- 42
- Inventors
- 150
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 2 |
| 2010 | 0 | 2 |
| 2011 | 2 | 0 |
| 2012 | 0 | 2 |
| 2013 | 4 | 9 |
| 2014 | 2 | 11 |
| 2015 | 2 | 9 |
| 2016 | 6 | 6 |
| 2017 | 5 | 2 |
| 2018 | 7 | 3 |
| 2019 | 4 | 0 |
| 2020 | 3 | 1 |
| 2021 | 0 | 1 |
| 2022 | 0 | 2 |
| 2023 | 0 | 2 |
| 2024 | 0 | 0 |
| 2025 | 3 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Volume heat treatment method and related system4 Aug 2026US 12,698,541 B2Laser Engineering Applications
- Metal surface layer treating method, metal assembly and electronic device5 Aug 2025US 12,378,664 B2Beijing Xiaomi Mobile Software Co., Ltd.
- Method for improving the formability of steel blanks8 Apr 2025US 12,270,086 B2ArcelorMittal
- Method and system for heating using an energy beam25 Mar 2025US 12,258,641 B2Etxe-Tar, S.A.
- Method and device for implementing laser shock peening or warm laser shock peening during selective laser melting24 Mar 2020US 10,596,661 B2Ecole Polytechnique Federale De Lausanne (Epfl)
- Metal surface layer treating method, metal assembly and electronic device30 Mar 2023US 2023/0097354 A1Beijing Xiaomi Mobile Software Co., Ltd.
- Volume heat treatment method and related system16 Mar 2023US 2023/0078751 A1Laser Engineering Applications
- Method and system for heating using an energy beam18 Aug 2022US 2022/0258281 A1Etxe-Tar, S.A.
- Method and system for heating using an energy beam24 Mar 2022US 2022/0088706 A1Etxe-Tar, S.A.
- Method for improving the formability of steel blanks17 Jun 2021US 2021/0180144 A1ArcelorMittal
Most cited
By later US patents
- Sheet forming of metallic glass by rapid capacitor discharge46US 8,613,815 B2California Institute of Technology · 2013
- Method and device for plasma treatment of moving metal substrates39US 6,933,460 B22005
- Process and apparatus for pretreating the surface of a single-layer or multilayer molded material by means of an electrical corona discharge24US 4,940,521 AHoechst Aktiengesellschaft · 1990
- Forming of metallic glass by rapid capacitor discharge19US 8,613,813 B2California Institute of Technology · 2013
- Forming of ferromagnetic metallic glass by rapid capacitor discharge19US 8,613,816 B2California Institute of Technology · 2013