H03K 21/08
Output circuits
H03K21/08 (Output circuits) appears on 450 US grants and 366 published applications in this corpus.
Search patents in H03K- Granted patents
- 450
- Published applications
- 366
- Assignees
- 228
- Inventors
- 851
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 1 |
| 2002 | 4 | 2 |
| 2003 | 4 | 7 |
| 2004 | 5 | 5 |
| 2005 | 4 | 7 |
| 2006 | 10 | 6 |
| 2007 | 4 | 6 |
| 2008 | 5 | 8 |
| 2009 | 6 | 7 |
| 2010 | 3 | 5 |
| 2011 | 6 | 13 |
| 2012 | 7 | 7 |
| 2013 | 13 | 15 |
| 2014 | 16 | 11 |
| 2015 | 19 | 28 |
| 2016 | 19 | 14 |
| 2017 | 18 | 13 |
| 2018 | 16 | 31 |
| 2019 | 46 | 35 |
| 2020 | 36 | 25 |
| 2021 | 27 | 23 |
| 2022 | 29 | 21 |
| 2023 | 23 | 22 |
| 2024 | 25 | 16 |
| 2025 | 19 | 20 |
| 2026 | 11 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Delay clock circuit, signal transmission device and a method for determining delay1 Sep 2026US 12,726,185 B2Beijing ESWIN Computing Technology Co., Ltd.
- Method for operating a circuit arrangement and circuit arrangement1 Sep 2026US 12,726,204 B2ams International AG
- Methods and apparatus to configure a device using timing4 Aug 2026US 12,700,856 B2Texas Instruments Incorporated
- Fractional frequency divider and flash memory controller21 Jul 2026US 12,687,914 B2Silicon Motion, Inc.
- Deterministic jitter compensation scheme for DTC timing path7 Jul 2026US 12,676,617 B2Texas Instruments Incorporated
- Methods and apparatus to dynamically correct time keeping errors6 Aug 2026US 2026/0230078 A1
- Multi-chain radio circuit system, quadrature divider circuit, and synchronization method30 Jul 2026US 2026/0222020 A1Chongqing WuQi Microelectronics Co., Ltd.
- Monitoring circuit, semiconductor integrated circuit device, and vehicle25 Jun 2026US 2026/0177608 A1Rohm Co., Ltd.
- Clock tamper detector and method for detecting a clock tampering event4 Jun 2026US 2026/0153563 A1PUFsecurity Corporation
- Clock modulation circuit and clock modulation method4 Jun 2026US 2026/0155811 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Multiple clock frequency divider with fifty percent duty cycle output133US 5,914,996 AIntel Corporation · 1999
- Dual-injection locked frequency dividing circuit119US 7,656,205 B2National Taiwan University · 2010
- Calibration methods and circuits for optimized on-die termination101US 6,924,660 B2Rambus Inc. · 2005
- Maintaining counters and updating a secondary counter storage96US 7,391,721 B1Cisco Technology, Inc. · 2008
- Calibration methods and circuits for optimized on-die termination55US 7,151,390 B2Rambus Inc. · 2006