H03K 3/289
Of the primary-secondary type
Official title: of the primary-secondary type
H03K3/289 (Of the primary-secondary type) appears on 98 US grants and 33 published applications in this corpus.
Search patents in H03K- Granted patents
- 98
- Published applications
- 33
- Assignees
- 50
- Inventors
- 136
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 6 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 2 | 2 |
| 2005 | 1 | 4 |
| 2006 | 0 | 1 |
| 2007 | 3 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 3 |
| 2010 | 2 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 3 |
| 2015 | 1 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 4 | 2 |
| 2020 | 1 | 0 |
| 2021 | 2 | 2 |
| 2022 | 1 | 3 |
| 2023 | 1 | 3 |
| 2024 | 2 | 2 |
| 2025 | 4 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Low-power flip flop circuit30 Sep 2025US 12,431,873 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Flip flop circuit2 Sep 2025US 12,407,335 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Flip flop circuit2 Sep 2025US 12,407,336 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Method for forming a timing circuit arrangements for flip-flops29 Jul 2025US 12,375,069 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Low-power flip flop circuit4 Jun 2024US 12,003,239 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Method for forming a timing circuit arrangements for flip-flops1 Jan 2026US 2026/0005677 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Flip Flop Circuit27 Nov 2025US 2025/0364977 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Low-power flip flop circuit5 Sep 2024US 2024/0297639 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Method for forming a timing circuit arrangements for flip-flops8 Aug 2024US 2024/0267036 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Flip Flop Circuit30 Nov 2023US 2023/0387895 A1Taiwan Semiconductor Manufacturing Company.Ltd
Most cited
By later US patents
- Latch circuit and method with complementary clocking and level sensitive scan capability89US 5,172,011 ADigital Equipment Corporation · 1992
- Scannable register/latch circuit62US 4,975,595 ANational Semiconductor Corporation · 1990
- Flip-flop circuit, parallel-serial converting circuit, and latch circuit43US 5,969,556 AMitsubishi Denki Kabushiki Kaisha · 1999
- Differential flipflop circuit operating with a low voltage39US 5,844,437 ANEC Corporation · 1998
- Integrated injection logic memory circuit34US 4,056,810 AU. S. Phillips Corporation · 1977