H03B 5/1835
The active element in the amplifier being a vacuum tube
Official title: {the active element in the amplifier being a vacuum tube}
H03B5/1835 (The active element in the amplifier being a vacuum tube) appears on 9 US grants and 2 published applications in this corpus.
Search patents in H03B- Granted patents
- 9
- Published applications
- 2
- Assignees
- 7
- Inventors
- 20
- Latest grant
- 9 Jan 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
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- Digital self excited loop6 Mar 2012US 8,130,045 B1Jefferson Science Associate, LLC
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- Method and device for high frequency treatment of products, related materials and uses4 Jun 2002US 6,399,927 B1Chapel et Cie
- Plasma generator19 Jan 1993US 5,180,949 AU. S. Philips Corporation
Most cited
By later US patents
- Plasma generator22US 5,180,949 AU. S. Philips Corporation · 1993
- High frequency inductive generator for the inductive coil of a plasma generator17US 4,337,415 AInstruments S. A. · 1982
- High-frequency high-voltage power generator with a coax resonator5US 5,111,024 AU. S. Philips Corporation · 1992
- Coaxial cavity microwave oscillator with manually adjustable capacitive feedback element2US 4,091,337 ARCA Corporation · 1978
- Digital self excited loop2US 8,130,045 B1Jefferson Science Associate, LLC · 2012