H03K 19/018
Using bipolar transistors only
Official title: using bipolar transistors only
H03K19/018 (Using bipolar transistors only) appears on 390 US grants and 150 published applications in this corpus.
Search patents in H03K- Granted patents
- 390
- Published applications
- 150
- Assignees
- 165
- Inventors
- 614
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 8 | 0 |
| 1980 | 6 | 0 |
| 1981 | 5 | 0 |
| 1982 | 9 | 0 |
| 1983 | 5 | 0 |
| 1984 | 8 | 0 |
| 1985 | 14 | 0 |
| 1986 | 14 | 0 |
| 1987 | 16 | 0 |
| 1988 | 10 | 0 |
| 1989 | 12 | 0 |
| 1990 | 13 | 0 |
| 1991 | 29 | 0 |
| 1992 | 12 | 0 |
| 1993 | 9 | 0 |
| 1994 | 8 | 0 |
| 1995 | 14 | 0 |
| 1996 | 8 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 9 | 3 |
| 2002 | 13 | 27 |
| 2003 | 6 | 7 |
| 2004 | 7 | 6 |
| 2005 | 9 | 8 |
| 2006 | 7 | 8 |
| 2007 | 3 | 2 |
| 2008 | 8 | 9 |
| 2009 | 5 | 6 |
| 2010 | 6 | 3 |
| 2011 | 5 | 0 |
| 2012 | 2 | 2 |
| 2013 | 2 | 3 |
| 2014 | 5 | 7 |
| 2015 | 5 | 7 |
| 2016 | 6 | 6 |
| 2017 | 9 | 4 |
| 2018 | 5 | 5 |
| 2019 | 5 | 4 |
| 2020 | 9 | 6 |
| 2021 | 3 | 6 |
| 2022 | 5 | 5 |
| 2023 | 6 | 3 |
| 2024 | 4 | 7 |
| 2025 | 4 | 3 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- On-board device16 Jun 2026US 12,658,917 B2Sumitomo Wiring Systems, Ltd.
- Distributed feedback in scale up signal paths10 Mar 2026US 12,574,018 B2Micron Technology, Inc.
- Bootstrapped switch13 Jan 2026US 12,525,979 B2Texas Instruments Incorporated
- Pulse voltage doubler and level shifter15 Jul 2025US 12,362,751 B2Honeywell International Inc.
- Radio frequency interference common mode injection in a C-PHY receiver8 Jul 2025US 12,353,350 B2QUALCOMM Incorporated
- High bandwidth level-shifting differential analog interface circuit21 May 2026US 2026/0142659 A1Microchip Technology Incorporated
- Circuitry and microcontroller26 Mar 2026US 2026/0088815 A1Infineon Technologies AG
- On-board device8 Jan 2026US 2026/0012181 A1Sumitomo Wiring Systems, Ltd.
- Radio frequency interference common mode injection in a c-phy receiver6 Mar 2025US 2025/0077462 A1QUALCOMM Incorporated
- Pulse voltage doubler and level shifter6 Feb 2025US 2025/0047283 A1Honeywell International Inc.
Most cited
By later US patents
- Integrated circuit communication techniques258US 7,439,773 B2cASIC Corporation · 2008
- Level shifter circuit208US 3,958,136 ABell Telephone Laboratories, Incorporated · 1976
- Circuit arrangement using emitter coupled logic and integrated injection logic106US 4,357,548 ARCA Corporation · 1982
- Differential to single-ended converter utilizing inverted transistors62US 4,326,135 AMotorola, Inc. · 1982
- Asymmetrical digital subscriber line (ADSL) line driver circuit59US 5,825,819 AMotorola, Inc. · 1998