H02H 7/003
Emergency protective circuit arrangements specially adapted for specific types of electric machines
Official title: {for electrostatic apparatus}
H02H7/003 (Emergency protective circuit arrangements specially adapted for specific types of electric machines) appears on 38 US grants and 12 published applications in this corpus.
Search patents in H02H- Granted patents
- 38
- Published applications
- 12
- Assignees
- 30
- Inventors
- 55
- Latest grant
- 15 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 2 |
| 2004 | 2 | 0 |
| 2005 | 1 | 2 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 2 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 2 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Overvoltage protection of accelerator components15 Apr 2025US 12,278,478 B2Neutron Therapeutics, Inc.
- Control circuit for protecting against spark discharge24 Nov 2020US 10,847,966 B2Gema Switzerland GmbH
- Protection circuit of semiconductor device15 May 2018US 9,972,992 B2Denso Corporation
- Spray coating system and method27 Dec 2016US 9,527,097 B2Torrent Systems, Inc.
- Electrostatic coating system, spray gun for electrostatic coating, and alternating power source unit21 Jul 2015US 9,085,001 B2Asahi Sunac Corporation
- Overvoltage protection of accelerator components29 Jun 2023US 2023/0208130 A1Neutron Therapeutics, Inc.
- Control circuit for protecting against spark discharge12 Mar 2020US 2020/0083698 A1Gema Switzerland GmbH
- Connection circuit28 Feb 2019US 2019/0064901 A1Toshiba Tec Kabushiki Kaisha
- Protection circuit of semiconductor device5 May 2016US 2016/0126723 A1Denso Corporation
- Spray coating system and method7 May 2015US 2015/0125609 A1Torrent Systems, Inc.
Most cited
By later US patents
- Protective device for electrostatic sprayer equipment83US 4,672,500 ASames S. A. · 1987
- Power supply37US 4,745,520 ARansburg Corporation · 1988
- Electrostatic coating system35US 4,187,527 ARansburg Corporation · 1980
- Electrostatic voltage control circuit29US 4,402,030 AChampion Spark Plug Company · 1983
- Fold-back power supply28US 4,485,427 ARansburg Corporation · 1984