Patent assignee · NO · COMPANY

PGS Geophysical AS

🏢 View company profile →
556Patents
542Active
556Granted
64Portfolio score

Filing activity: Sep 23, 2003 → Apr 4, 2023 · 76 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US7142481B1 Method and system for making marine seismic streamers Electricity 66 Expired
US7376045B2 System and method for determining positions of towed marine seismic streamers Physics 60 Expired
US7298672B1 Marine seismic streamer having acoustic isolation between strength members and sensor mounting Physics 54 Active
US7974152B2 Control system for marine vibrators and seismic acquisition system using such control system Physics 52 Active
US7616523B1 Method for combining pressure and motion seismic signals from streamers where sensors are not at a common depth Physics 50 Active
US8427901B2 Combined impulsive and non-impulsive seismic sources Physics 47 Active
US7551518B1 Driving means for acoustic marine vibrator Physics 43 Active
US7446535B1 Electrode structure and streamer made therewith for marine electromagnetic surveying Emerging Cross-Sectional Technologies 40 Active
US7671598B2 Method and apparatus for reducing induction noise in measurements made with a towed electromagnetic survey system Emerging Cross-Sectional Technologies 39 Active
US7881158B2 Seismic vibrator having multiple resonant frequencies in the seismic frequency band using multiple spring and mass arrangements to reduce required reactive mass Physics 37 Active
US7196969B1 Three-dimensional two-way acoustic wave equation pre-stack imaging systems and methods Physics 36 Expired
US8102731B2 Method for operating marine seismic vibrator array to enhance low frequency output Physics 34 Active
US7834632B2 Receiver streamer system and method for marine electromagnetic surveying Physics 33 Active
US8098542B2 Combined electromagnetic and seismic acquisition system and method Emerging Cross-Sectional Technologies 32 Active
US8094514B2 Seismic vibrator array and method for using Physics 29 Active
US8446798B2 Marine acoustic vibrator having enhanced low-frequency amplitude Physics 28 Active
US7457193B2 Seismic source and source array having depth-control and steering capability Physics 28 Active
US7737698B2 Low noise, towed electromagnetic system for subsurface exploration Emerging Cross-Sectional Technologies 27 Active
US8035393B2 Fiber optic system for electromagnetic surveying Physics 25 Active
US8335127B2 Method for generating spread spectrum driver signals for a seismic vibrator array using multiple biphase modulation operations in each driver signal chip Physics 24 Active
US8267031B2 Tension management control system and methods used with towed marine sensor arrays Physics 23 Active
US7152547B1 Seismic vessel having motion-stabilized helicopter landing platform Performing Operations; Transporting 23 Expired
US7545703B2 Marine seismic streamer with varying spacer distances for reducing towing noise Physics 23 Active
US7539079B2 System and method for determining positions of towed marine source-array elements Physics 22 Active
US8339896B2 Method for separating seismic sources in marine seismic surveys Physics 22 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.