G04F 5/16
Apparatus for producing preselected time intervals for use as timing standards: using
Official title: using pulses produced by radio-isotopes
G04F5/16 (Apparatus for producing preselected time intervals for use as timing standards: using) appears on 9 US grants and 7 published applications in this corpus.
Search patents in G04F- Granted patents
- 9
- Published applications
- 7
- Assignees
- 9
- Inventors
- 20
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Physics package for chip scale atomic clocks and method of making same6 Oct 2026US 12,754,516 B2Microchip Technology Incorporated
- Method for unifying time in wide area of space, space time-keeping system28 Jul 2026US 12,693,634 B2Beijing Oriental Institute of Measurement and Test
- Precision timing source back-up for loss of GPS satellites1 Nov 2016US 9,484,980 B1Sprint Communications Co.L.P.
- Radiation-based timer for implantable medical devices3 May 2011US 7,935,935 B2Medtronic, Inc.
- Radioactive decay based stable time or frequency reference signal source13 Jan 2009US 7,476,865 B2Cornell Research Foundation, Inc.
- Physics package for chip scale atomic clocks and method of making same23 Apr 2026US 2026/0110989 A1Microchip Technology Incorporated
- Method for unifying time in wide area of space, space time-keeping system22 Feb 2024US 2024/0061378 A1Beijing Oriental Institute of Measurement and Test
- Programmable integrated circuit using a radioactive source12 Jan 2023US 2023/0009800 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Radiation-based timer for implantable medical devices2 Sep 2010US 2010/0219351 A1Medtronic, Inc.
- Tamper-resistant time reference and apparatus using same8 Jan 2009US 2009/0010107 A1NXP B. V.
Most cited
By later US patents
- Semiconductor timing device with radioactive material at the floating gate electrode of an insulated-gate field-effect transistor27US 4,275,405 AMullard Limited · 1981
- Horologic instruments with random timing source10US 4,158,286 ATexas Instruments Incorporated · 1979
- Radiation-based timer for implantable medical devices9US 7,935,935 B2Medtronic, Inc. · 2011
- Radioactive timing source for horologic instruments and the like4US 4,676,661 ATexas Instruments Incorporated · 1987
- Radioactive decay based stable time or frequency reference signal source4US 7,476,865 B2Cornell Research Foundation, Inc. · 2009