G01V 7/14
Measuring gravitational fields or waves: using free-fall time
Official title: using free-fall time
G01V7/14 (Measuring gravitational fields or waves: using free-fall time) appears on 33 US grants and 36 published applications in this corpus.
Search patents in G01V- Granted patents
- 33
- Published applications
- 36
- Assignees
- 25
- Inventors
- 67
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 7 |
| 2015 | 4 | 1 |
| 2016 | 2 | 2 |
| 2017 | 1 | 2 |
| 2018 | 4 | 2 |
| 2019 | 0 | 2 |
| 2020 | 0 | 1 |
| 2021 | 2 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 5 |
| 2024 | 3 | 3 |
| 2025 | 2 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Physical package for optical lattice clock11 Aug 2026US 12,704,816 B2JEOL Ltd.
- Star infiltration device, and method of measuring gravitational acceleration and soil-bearing capacity of a star23 Sep 2025US 12,422,389 B2Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences
- Tri-axial magnetic field correction coil, physical package, physical package for optical lattice clock, physical package for atomic clock, physical package for atom interferometer, physical package for quantum information processing device, and physical package system28 Jan 2025US 12,211,647 B2JEOL Ltd.
- Absolute gravimeter and measurement method based on vacuum optical tweezers24 Dec 2024US 12,174,335 B2Zhejiang Lab
- Triaxial magnetic field correction coil, physics package, physics package for optical lattice clock, physics package for atomic clock, physics package for atom interferometer, physics package for quantum information processing device, and physics package system12 Mar 2024US 11,929,754 B2JEOL Ltd.
- Light Reflector Element and Atomic Device6 Aug 2026US 2026/0227613 A1Deutsches Zentrum für Luft- und Raumfahrt e. V.
- Optical gravimeter based on fabry-perot interferometers with frequency reading26 Jun 2025US 2025/0208313 A1Petroleo Brasileiro S.A. - Petrobras
- Star infiltration device, and method of measuring gravitational acceleration and soil-bearing capacity of a star15 May 2025US 2025/0155393 A1Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences
- High Fidelity Robust Atom Optics26 Sep 2024US 2024/0319402 A1The University of Birmingham
- Ball-Loading Device For Fee Fall Experiment5 Sep 2024US 2024/0295671 A1National University of Defense Technology
Most cited
By later US patents
- Gravity meter40US 6,082,194 AThe Commonwealth of Australia Commonwealth Scientific and Industrial Research Organization · 2000
- Differential interferometric ballistic gravity measurement apparatus and method21US 5,892,151 AEM-g, Inc. · 1999
- Absolute gravity inline measuring apparatus incorporating improved operating features17US 5,351,122 AMicro-g Solutions, Inc. · 1994
- Gravity and differential gravity sensor, and system and method for monitoring reservoirs using same15US 6,671,057 B2Schlumberger Technology Corporation · 2003
- Cold atom gravity gradiometer14US 9,134,450 B2Muquans · 2015