G01V 2210/21
Frequency-domain filtering
Official title: Frequency-domain filtering, e.g. band pass
G01V2210/21 (Frequency-domain filtering) appears on 82 US grants and 90 published applications in this corpus.
Search patents in G01V- Granted patents
- 82
- Published applications
- 90
- Assignees
- 49
- Inventors
- 214
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 3 |
| 2003 | 3 | 1 |
| 2004 | 2 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 1 | 3 |
| 2010 | 2 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 6 |
| 2013 | 1 | 2 |
| 2014 | 3 | 4 |
| 2015 | 4 | 3 |
| 2016 | 3 | 5 |
| 2017 | 1 | 6 |
| 2018 | 2 | 3 |
| 2019 | 7 | 8 |
| 2020 | 7 | 8 |
| 2021 | 4 | 10 |
| 2022 | 10 | 5 |
| 2023 | 4 | 7 |
| 2024 | 7 | 2 |
| 2025 | 2 | 5 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- DAS data processing to identify fluid inflow locations and fluid type10 Mar 2026US 12,571,301 B2BP Exploration Operating Company Limited
- Quality control and preconditioning of seismic data17 Feb 2026US 12,554,031 B2WesternGeco L. L. C.
- Detection and quantification of sand flows in a borehole20 Jan 2026US 12,529,811 B2Halliburton Energy Services.Inc.
- Marine seismic imaging27 May 2025US 12,313,801 B2Schlumberger Technology Corporation
- Enhancement of seismic data14 Jan 2025US 12,196,904 B2Saudi Arabian Oil Company
- Three-dimensional reverse-time extrapolation method for seismic waves and high-resolution tunnel seismic advance prediction method9 Jul 2026US 2026/0194674 A1Chongqing Jiaotong University
- Enhancing Interface Waves Filtering by Hamiltonian Monte-Carlo Sampling9 Jul 2026US 2026/0194677 A1Saudi Arabian Oil Company
- Underwater acoustic signal detection method for detecting cetacean whistle signal and apparatus therefor2 Jul 2026US 2026/0186157 A1Agency for Defense Development
- Spectral mean normalization method for minimizing rotation effect from drill bit sounds4 Jun 2026US 2026/0153028 A1Aramco Far East (Beijing) Business Services Co., Ltd.
- Estimating Seismic Wavefront Attributes4 Dec 2025US 2025/0370152 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Method for correcting impulse response differences of hydrophones and geophones as well as geophone coupling to the water-bottom in dual-sensor, bottom-cable seismic operations65US 5,163,028 AHalliburton Geophysical Services, Inc. · 1992
- Noise detection and suppression system and method for wellbore telemetry45US 6,023,658 ASchlumberger Technology Corporation · 2000
- Method for spectral balancing of near- and far-offset seismic data33US 6,516,275 B2ExxonMobil Upstream Research Company · 2003
- Estimating subsurface subsidence and compaction30US 6,640,190 B2Schlumberger Technology Corporation · 2003
- Two-dimensional frequency domain filtering23US 4,218,765 AStandard Oil Company (Indiana) · 1980