C03B 37/092
Direct-resistance heating
C03B37/092 (Direct-resistance heating) appears on 10 US grants and 2 published applications in this corpus.
Search patents in C03B- Granted patents
- 10
- Published applications
- 2
- Assignees
- 6
- Inventors
- 16
- Latest grant
- 18 Sep 2007
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 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 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Bushing temperature controller18 Sep 2007US 7,269,974 B2Nitto Boseki Co., Ltd.
- Glass melt furnace4 Apr 1989US 4,819,247 AOwens-Corning Fiberglas Corporation
- Melting furnaces20 Jan 1987US 4,638,490 AOwens-Corning Fiberglas Corporation
- Melting furnaces9 Jul 1985US 4,528,013 AOwens-Corning Fiberglas Corporation
- Electric glass melting furnace1 Jan 1985US 4,491,951 AOwens-Corning Fiberglas Corporation
Most cited
By later US patents
- Electric glass melting furnace23US 4,491,951 AOwens-Corning Fiberglas Corporation · 1985
- Method and apparatus for making glass filament or fibers20US 4,416,678 AEglasstrek Patent Promotion & Awarding GmbH · 1983
- Glass melt furnace8US 4,819,247 AOwens-Corning Fiberglas Corporation · 1989
- Method of reducing deterioration of electric furnace refractory metal components5US 4,099,949 AJohns Manville · 1978
- Electric furnaces5US 4,375,449 ASidchrome (S.E. Asia) Limited · 1983