H03K 5/2409
Using bipolar transistors
Official title: {using bipolar transistors (H03K5/2436 takes precedence)}
H03K5/2409 (Using bipolar transistors) appears on 143 US grants and 51 published applications in this corpus.
Search patents in H03K- Granted patents
- 143
- Published applications
- 51
- Assignees
- 90
- Inventors
- 246
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 7 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 2 |
| 2002 | 5 | 2 |
| 2003 | 5 | 5 |
| 2004 | 4 | 0 |
| 2005 | 1 | 2 |
| 2006 | 2 | 3 |
| 2007 | 0 | 1 |
| 2008 | 1 | 2 |
| 2009 | 2 | 2 |
| 2010 | 1 | 2 |
| 2011 | 1 | 1 |
| 2012 | 3 | 1 |
| 2013 | 0 | 2 |
| 2014 | 3 | 2 |
| 2015 | 3 | 4 |
| 2016 | 2 | 1 |
| 2017 | 4 | 3 |
| 2018 | 1 | 1 |
| 2019 | 2 | 1 |
| 2020 | 0 | 4 |
| 2021 | 3 | 3 |
| 2022 | 6 | 3 |
| 2023 | 3 | 2 |
| 2024 | 4 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Temperature measuring circuit15 Sep 2026US 12,738,932 B2Sharp Semiconductor Innovation Corporation
- Semiconductor memory device for determining operation state with detecting frequency of input clock signal23 Sep 2025US 12,424,252 B2Fidelix Co., Ltd.
- Clock duty cycle measurement31 Dec 2024US 12,184,286 B1Cadence Design Systems, Inc.
- Device detecting abnormality of secondary battery and semiconductor device30 Apr 2024US 11,973,198 B2Semiconductor Energy Laboratory Co.Ltd.
- Input clock buffer and clock signal buffereing method26 Mar 2024US 11,942,950 B2Elite Semiconductor Microelectronics Technology Inc.
- Temperature measuring circuit4 Sep 2025US 2025/0279776 A1Sharp Semiconductor Innovation Corporation
- Semiconductor memory device for determing operation state with detecting frequency of input clock signal29 Feb 2024US 2024/0071444 A1Fidelix Co., Ltd.
- Input clock buffer and clock signal buffereing method28 Dec 2023US 2023/0421143 A1Elite Semiconductor Microelectronics Technology Inc.
- Input driven self-clocked dynamic comparator19 Oct 2023US 2023/0336168 A1University of Washington
- Analog comparator circuit for communication interfaces within a vehicle23 Jun 2022US 2022/0200593 A1ZF Friedrichshafen AG
Most cited
By later US patents
- Comparator unit for a flash analog-to-digital converter194US 4,910,518 ASamsun Semiconductor and Telecommunications Co., Ltd. · 1990
- Quantum tunneling devices and circuits with lattice-mismatched semiconductor structures92US 7,875,958 B2Taiwan Semiconductor Manufacturing Company.Ltd · 2011
- Low voltage differential signal (LVDS) input circuit64US 6,504,403 B2Telefonaktiebolaget LM Ericsson · 2003
- Differential to single-ended converter utilizing inverted transistors62US 4,326,135 AMotorola, Inc. · 1982
- Sense amplifier and method for sensing the outputs of static random access memory cells56US 4,991,141 ATexas Instruments Incorporated · 1991