H03K
Pulse technique
Official title: PULSE TECHNIQUE (measuring pulse characteristics G01R; modulating sinusoidal oscillations with pulses H03C; transmission of digital information H04L; discriminator circuits detecting phase difference between two signals by counting or integrating cycles of oscillation H03D3/04; automatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses where the type of generator is irrelevant or unspecified H03L; coding, decoding or code conversion, in general H03M)
H03K (Pulse technique) appears on 76,157 US grants and 56,534 published applications in this corpus.
Search patents in H03K- Granted patents
- 76,157
- Published applications
- 56,534
- Assignees
- 9,537
- Inventors
- 84,113
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 654 | 0 |
| 1977 | 609 | 0 |
| 1978 | 498 | 0 |
| 1979 | 363 | 0 |
| 1980 | 398 | 0 |
| 1981 | 449 | 0 |
| 1982 | 448 | 0 |
| 1983 | 463 | 0 |
| 1984 | 489 | 0 |
| 1985 | 600 | 0 |
| 1986 | 620 | 0 |
| 1987 | 817 | 0 |
| 1988 | 652 | 0 |
| 1989 | 759 | 0 |
| 1990 | 721 | 0 |
| 1991 | 848 | 0 |
| 1992 | 871 | 0 |
| 1993 | 779 | 0 |
| 1994 | 910 | 0 |
| 1995 | 1023 | 0 |
| 1996 | 1091 | 0 |
| 1997 | 985 | 0 |
| 1998 | 1297 | 0 |
| 1999 | 1363 | 0 |
| 2000 | 1555 | 0 |
| 2001 | 1601 | 393 |
| 2002 | 1558 | 1198 |
| 2003 | 1459 | 1346 |
| 2004 | 1439 | 1513 |
| 2005 | 1328 | 1740 |
| 2006 | 1643 | 1826 |
| 2007 | 1683 | 1767 |
| 2008 | 1557 | 2088 |
| 2009 | 1673 | 2027 |
| 2010 | 2117 | 1962 |
| 2011 | 1870 | 1922 |
| 2012 | 1709 | 1853 |
| 2013 | 2095 | 2335 |
| 2014 | 2454 | 2597 |
| 2015 | 2472 | 2606 |
| 2016 | 2881 | 2622 |
| 2017 | 2987 | 2575 |
| 2018 | 2578 | 2821 |
| 2019 | 3403 | 3121 |
| 2020 | 3572 | 3046 |
| 2021 | 2734 | 2688 |
| 2022 | 2698 | 2836 |
| 2023 | 2629 | 2727 |
| 2024 | 2595 | 2730 |
| 2025 | 2435 | 2388 |
| 2026 | 1725 | 1807 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- H03K 17/00Electronic switching or gating, i.e. not by contact-making and –breaking27,942
- H03K 19/00Logic circuits, i.e. having at least two inputs acting on one output25,721
- H03K 5/00Manipulating of pulses not covered by one of the other main groups16,202
- H03K 3/00Circuits for generating electric pulses14,422
- H03K 2217/00Indexing scheme related to electronic switching or gating, i.e. not by contact-makingIndexing code7,720
- H03K 7/00Modulating pulses with a continuously-variable modulating signal2,042
- H03K 23/00Pulse counters comprising counting chains1,547
- H03K 4/00Generating pulses having essentially a finite slope or stepped portions1,473
All 17 main groupsShow fewer
- H03K 21/00Details of pulse counters or frequency dividers1,372
- H03K 9/00Demodulating pulses which have been modulated with a continuously-variable signal276
- H03K 6/00Manipulating pulses having a finite slope and not covered by one of100
- H03K 11/00Transforming types of modulations26
- H03K 12/00Producing pulses by distorting or combining sinusoidal waveforms24
- H03K 25/00Pulse counters with step-by-step integration and static storage24
- H03K 27/00Pulse counters in which pulses are continuously circulated in a closed loop16
- H03K 99/00Subject matter not provided for in other groups of this subclass11
- H03K 29/00Pulse counters comprising multi-stable elements8
Recent patents
- Illuminated control module for a motor vehicle6 Oct 2026US 12,753,904 B2Dav
- Twister oven for photoconductive switches6 Oct 2026US 12,754,373 B2Lawrence Livermore National Security, LLC
- Interface circuit and display device6 Oct 2026US 12,754,701 B2Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
- Adiabatic circuits for cold scalable electronics6 Oct 2026US 12,754,878 B2Zettaflops LLC
- Memory device6 Oct 2026US 12,755,773 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Capacitive switch structure for nondiscrete, tactile and nontactile switches with customizable minimum activation thresholds8 Oct 2026US 2026/0309556 A1Nitto Bend Technologies, Inc.
- Low-power current transformer to which temperature compensation is applied, and temperature compensation method therefor8 Oct 2026US 2026/0309757 A1Hyosung Heavy Industries Corporation
- Adjustable voltage divider circuit and method8 Oct 2026US 2026/0310250 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Memory performing training operation, memory system, and operation method of the memory system8 Oct 2026US 2026/0310468 A1SK hynix Inc.
- Photonic quantum computer architecture and methods of operation8 Oct 2026US 2026/0311016 A1Psiquantum, Corp.
Most cited
By later US patents
- Method and apparatus for integrating manual input3,711US 6,323,846 B1University of Delaware · 2001
- Interactive displays1,824US 9,283,054 B2Ethicon Endo-Surgery, Inc. · 2016
- Closure indicator systems for surgical instruments1,647US 9,445,813 B2Ethicon Endo-Surgery, Inc. · 2016
- Cordless, battery operated surical tool1,621US 5,747,953 AStryker Corporation · 1998
- Time delay switch1,477US 5,473,204 A1995