H03K 21/18
Circuits for visual indication of the result
H03K21/18 (Circuits for visual indication of the result) appears on 47 US grants and 12 published applications in this corpus.
Search patents in H03K- Granted patents
- 47
- Published applications
- 12
- Assignees
- 41
- Inventors
- 81
- Latest grant
- 19 Nov 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 6 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 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 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 1 | 0 |
| 2018 | 1 | 3 |
| 2019 | 1 | 0 |
| 2020 | 1 | 2 |
| 2021 | 0 | 1 |
| 2022 | 3 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Pleat counter19 Nov 2024US 12,147,871 B2K&N Engineering, Inc.
- Connected smart counter20 Jun 2023US 11,681,894 B2
- Hubodometer21 Jun 2022US 11,365,982 B2
- Lightning strike counter and lightning strike counting method19 Apr 2022US 11,309,897 B2Nlightning Technology Ltd.
- Pleat counter22 Mar 2022US 11,281,960 B2K&N Engineering, Inc.
- Pleat Counter6 Feb 2025US 2025/0045556 A1K&N Engineering, Inc.
- Pleat counter16 Jun 2022US 2022/0188593 A1K&N Engineering, Inc.
- Lightning strike counter and lightning strike counting method24 Feb 2022US 2022/0060190 A1Nlightning Technology Ltd.
- Connected smart counter11 Mar 2021US 2021/0073609 A1
- Hubodometer16 Jul 2020US 2020/0225058 A1
Most cited
By later US patents
- Seed planter monitor39US 4,159,064 ADickey-john Corporation · 1979
- Electronic score-keeper for table tennis27US 4,119,838 A1978
- Electronic apparatus using complementary MOS transistor dynamic clocked logic circuits21US 4,164,666 AToyko Shibaura Electric Co., Ltd. · 1979
- Gate shift register and organic light emitting diode display including the same17US 10,547,316 B2LG Display Co., Ltd. · 2020
- Electronic digital tape timer16US 4,140,896 AAmpex Corporation · 1979