G04F
Time-interval measuring
Official title: TIME-INTERVAL MEASURING (measuring pulse characteristics G01R, e.g. G01R29/02; in radar or like systems G01S)
G04F (Time-interval measuring) appears on 3,433 US grants and 2,670 published applications in this corpus.
Search patents in G04F- Granted patents
- 3,433
- Published applications
- 2,670
- Assignees
- 1,287
- Inventors
- 5,501
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 83 | 0 |
| 1977 | 68 | 0 |
| 1978 | 59 | 0 |
| 1979 | 30 | 0 |
| 1980 | 47 | 0 |
| 1981 | 45 | 0 |
| 1982 | 45 | 0 |
| 1983 | 39 | 0 |
| 1984 | 50 | 0 |
| 1985 | 42 | 0 |
| 1986 | 37 | 0 |
| 1987 | 44 | 0 |
| 1988 | 36 | 0 |
| 1989 | 29 | 0 |
| 1990 | 38 | 0 |
| 1991 | 46 | 0 |
| 1992 | 38 | 0 |
| 1993 | 31 | 0 |
| 1994 | 38 | 0 |
| 1995 | 29 | 0 |
| 1996 | 26 | 0 |
| 1997 | 26 | 0 |
| 1998 | 36 | 0 |
| 1999 | 46 | 0 |
| 2000 | 31 | 0 |
| 2001 | 35 | 12 |
| 2002 | 39 | 29 |
| 2003 | 32 | 47 |
| 2004 | 40 | 66 |
| 2005 | 41 | 81 |
| 2006 | 59 | 68 |
| 2007 | 54 | 84 |
| 2008 | 59 | 82 |
| 2009 | 55 | 91 |
| 2010 | 61 | 85 |
| 2011 | 92 | 120 |
| 2012 | 94 | 88 |
| 2013 | 80 | 98 |
| 2014 | 95 | 119 |
| 2015 | 124 | 156 |
| 2016 | 157 | 129 |
| 2017 | 120 | 131 |
| 2018 | 115 | 134 |
| 2019 | 147 | 179 |
| 2020 | 195 | 148 |
| 2021 | 133 | 154 |
| 2022 | 134 | 132 |
| 2023 | 118 | 132 |
| 2024 | 138 | 135 |
| 2025 | 108 | 99 |
| 2026 | 69 | 71 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- G04F 10/00Apparatus for measuring unknown time intervals by electric means1,405
- G04F 5/00Apparatus for producing preselected time intervals for use as timing standards958
- G04F 1/00Apparatus which can be set and started to measure-off predetermined or adjustably-fixed484
- G04F 8/00Apparatus for measuring unknown time intervals by electromechanical means211
- G04F 7/00Apparatus for measuring unknown time intervals by non-electric means210
- G04F 3/00Apparatus which can be set and started to measure-off predetermined or adjustably-fixed194
- G04F 13/00Apparatus for measuring unknown time intervals by means not provided for in190
Recent patents
- Control member for controlling at least one function of a timepiece movement6 Oct 2026US 12,754,513 B2Manufacture D'Horlogerie Audemars Piguet SA
- Physics package for chip scale atomic clocks and method of making same6 Oct 2026US 12,754,516 B2Microchip Technology Incorporated
- Time to digital converter (TDC) circuit with self-adaptive time granularity and related methods29 Sep 2026US 12,748,385 B2Microsoft Technology Licensing, LLC
- Method and system for improved measurement of the time of passage on a timekeeping line22 Sep 2026US 12,741,192 B2Swiss Timing Ltd
- Wristwatch with a clock generator assembly22 Sep 2026US 12,743,055 B2Realization Desal AG
- Visual countdown task timer device8 Oct 2026US 2026/0310138 A1
- Time-to-digital converter and phase-locked loop circuit8 Oct 2026US 2026/0310139 A1Novatek Microelectronics Corp.
- Transmitter, integrated circuit and method for calibrating output impedance8 Oct 2026US 2026/0312576 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Cage assembly for modular quantum device1 Oct 2026US 2026/0304669 A1
- Shot timer10 Sep 2026US 2026/0267292 A1
Most cited
By later US patents
- Sport monitoring system for determining airtime, speed, power absorbed and other factors such as drop distance559US 6,539,336 B1PhatRat Technologies, Inc. · 2003
- Shoes and garments employing one or more of accelerometers, wireless transmitters, processors, altimeters, to determine information such as speed to persons wearing the shoes or garments359US 7,457,724 B2NIKE, Inc. · 2008
- Device with time indicating means356US 7,133,329 B2Novo Nordisk A/S · 2006
- Systems and methods for determining performance data346US 7,092,846 B2PhatRat Technology, Inc. · 2006
- Athletic watch317US 8,562,489 B2NIKE, Inc. · 2013