G09F 13/26
Signs formed by electric discharge tubes
Official title: Signs formed by electric discharge tubes (by selective lighting G09F9/00)
G09F13/26 (Signs formed by electric discharge tubes) appears on 83 US grants and 41 published applications in this corpus.
Search patents in G09F- Granted patents
- 83
- Published applications
- 41
- Assignees
- 38
- Inventors
- 122
- Latest grant
- 14 Mar 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 8 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 1 |
| 2002 | 2 | 1 |
| 2003 | 0 | 3 |
| 2004 | 2 | 3 |
| 2005 | 1 | 9 |
| 2006 | 4 | 3 |
| 2007 | 1 | 3 |
| 2008 | 2 | 3 |
| 2009 | 1 | 3 |
| 2010 | 0 | 0 |
| 2011 | 1 | 3 |
| 2012 | 4 | 1 |
| 2013 | 0 | 4 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 3 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Gimmick expression medium producing method and data processing method for gimmick expression medium14 Mar 2023US 11,602,918 B2So-Ken Co., Ltd.
- Flash discharge tube and light-emitting device equipped with the flash discharge tube16 Jan 2018US 9,870,913 B2Panasonic Intellectual Property Management Co., Ltd.
- Reporting open sign18 Apr 2017US 9,626,883 B2
- Advertising apparatus1 Mar 2016US 9,275,562 B2
- Light directing sign substrate12 Aug 2014US 8,801,207 B23M Innovative Properties Company
- Gimmick expresion medium producing method and data processing method for gimmick expression medium5 Aug 2021US 2021/0237398 A1So-Ken Co., Ltd.
- Flash discharge tube and light-emitting device equipped with the flash discharge tube26 Oct 2017US 2017/0309466 A1Panasonic Intellectual Property Management Co., Ltd.
- Online Real-Time Business Information10 Aug 2017US 2017/0228802 A1
- Reporting Open Sign2 Feb 2017US 2017/0032716 A1
- Energy-saving billboard module9 May 2013US 2013/0111790 A1
Most cited
By later US patents
- Color matrix display with discharge tube light emitting elements117US 4,559,480 AOmega SA · 1985
- Simulated neon sign102US 4,976,057 A1990
- Color display apparatus58US 4,491,863 AMitsubishi Denki Kabushiki Kaisha · 1985
- Wall mounting for neon lights48US 5,765,939 AFallon Luminous Products Corporation · 1998
- Luminous electric sign43US 5,533,286 A1996