Dresser Industries, Inc.
1,242Patents
1Active
1,242Granted
48Portfolio score
Filing activity: Jun 2, 1971 → Sep 23, 2002
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6429784B1 | Casing mounted sensors, actuators and generators | Physics | 225 | Expired |
| US6163155A | Electromagnetic wave resistivity tool having a tilted antenna for determining the horizontal and vertical resistivities and relative dip angle in anisotropic earth formations | Physics | 172 | Expired |
| US6476609B1 | Electromagnetic wave resistivity tool having a tilted antenna for geosteering within a desired payzone | Physics | 154 | Expired |
| US4006936A | Rotary cutter for a road planer | Fixed Constructions | 150 | Expired |
| US6003623A | Cutters and bits for terrestrial boring | Fixed Constructions | 150 | Expired |
| US4621031A | Composite material bonded by an amorphous metal, and preparation thereof | Emerging Cross-Sectional Technologies | 149 | Expired |
| US6296069A | Bladed drill bit with centrally distributed diamond cutters | Fixed Constructions | 136 | Expired |
| US6109368A | Method and system for predicting performance of a drilling system for a given formation | Fixed Constructions | 133 | Expired |
| US5373907A | Method and apparatus for manufacturing and inspecting the quality of a matrix body drill bit | Performing Operations; Transporting | 132 | Expired |
| US5452771A | Rotary drill bit with improved cutter and seal protection | Fixed Constructions | 131 | Expired |
| US4538063A | Photo transducer circuit for setting minimum and maximum current flow between power terminals | Physics | 130 | Expired |
| US4423889A | Well-tubing expansion joint | Fixed Constructions | 130 | Expired |
| US5340969A | Method and apparatus for approving transaction card based transactions | Physics | 128 | Expired |
| US5518077A | Rotary drill bit with improved cutter and seal protection | Fixed Constructions | 123 | Expired |
| US4722405A | Wear compensating rock bit insert | Emerging Cross-Sectional Technologies | 121 | Expired |
| US4005880A | Gas service connector for plastic pipe | Mechanical Engineering; Lighting; Heating | 119 | Expired |
| US4848459A | Apparatus for installing a liner within a well bore | Fixed Constructions | 118 | Expired |
| US4363358A | Subsurface tubing hanger and stinger assembly | Fixed Constructions | 117 | Expired |
| US4988274A | Method and apparatus for producing an optical element | Emerging Cross-Sectional Technologies | 114 | Expired |
| US6216533A | Apparatus for measuring downhole drilling efficiency parameters | Fixed Constructions | 113 | Expired |
| US4996627A | High sensitivity miniature pressure transducer | Physics | 110 | Expired |
| US6152591A | Interactive graphics display system for a fuel dispenser | Physics | 108 | Expired |
| US4942925A | Liner isolation and well completion system | Fixed Constructions | 107 | Expired |
| US4776393A | Perforating gun automatic release mechanism | Fixed Constructions | 105 | Expired |
| US5755299A | Hardfacing with coated diamond particles | Emerging Cross-Sectional Technologies | 101 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.