C04B 33/26
Of porcelain for electrical insulation
Official title: of porcelain for electrical insulation
C04B33/26 (Of porcelain for electrical insulation) appears on 22 US grants and 12 published applications in this corpus.
Search patents in C04B- Granted patents
- 22
- Published applications
- 12
- Assignees
- 22
- Inventors
- 46
- Latest grant
- 19 Oct 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 0 |
| 2004 | 0 | 2 |
| 2005 | 2 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 2 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Ceramic heating resistor, electrical heating element, and device for heating a fluid19 Oct 2021US 11,153,936 B2Leister Technologies AG
- Glaze for a ceramic article9 Mar 2021US 10,941,082 B2Ppc Austria Holding GmbH
- Porcelain composition with nanosized ceramic oxides3 Jul 2018US 10,011,533 B2Prolec S.A. De C.V.
- Friable-resistant dielectric porcelain9 Aug 2016US 9,409,822 B2Victor Insulators, Inc.
- Friable-resistant dielectric porcelain24 Mar 2015US 8,987,158 B2Victor Insulators, Inc.
- Chopped glass fibers for ceramics2 Dec 2021US 2021/0371344 A1Owens Corning Intellectual Capital, LLC
- Ceramic heating resistor, electrical heating element, and device for heating a fluid5 Aug 2021US 2021/0243849 A1Leister Technologies AG
- Glaze for a ceramic article12 Sep 2019US 2019/0276373 A1Ppc Insulators Austria GmbH
- Porcelain composition with nanosized ceramic oxides14 Sep 2017US 2017/0260099 A1Prolec S.A. De C.V.
- Friable-resistant dielectric porcelain11 Jun 2015US 2015/0158769 A1Victor Insulators, Inc.
Most cited
By later US patents
- High-strength alumina ceramic product and method of forming21US 4,183,760 AElectric Power Research Institute, Inc. · 1980
- Porcelain composition, porcelain and method of producing the same, and wiring board and method of producing the same20US 6,630,417 B2KYOCERA Corporation · 2003
- Electrically insulating substrate18US 4,689,262 ACTS Corporation · 1987
- High strength feldspathic porcelain17US 4,717,695 ANGK Insulators, Ltd. · 1988
- Alumina-zirconia ceramic11US 4,879,260 AChampion Spark Plug Company · 1989