Inventor

SCHROEDER EDGAR C

US6 patents

⚠️ This page may combine multiple inventors who share the name “SCHROEDER EDGAR C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SOUTHWEST RES INST

2 patents

US4651311AMar 17, 1987

Electrodeless spark discharge acoustic pulse transducer for borehole operation

SOUTHWEST RES INST45 citations91

US4706228ANov 10, 1987

Asymmetrical lateral-force seismic source transducer

SOUTHWEST RES INST20 citations81

HYPRO CORP

2 patents

US5074767ADec 24, 1991

Positive displacement pump with rotating reciprocating piston and improved lubrication feature

HYPRO CORP10 citations71

US5022831AJun 11, 1991

Positive displacement pump with rotating reciprocating piston

HYPRO CORP6 citations60

SCHLUMBERGER TECHNOLOGY CORP

1 patent

US7916578B2Mar 29, 2011

Seismic wave generation systems and methods for cased wells

SCHLUMBERGER TECHNOLOGY CORP7 citations81

GERLACH C RICHARD

1 patent

US5096394AMar 17, 1992

Positive displacement pump with rotating reciprocating piston and improved pulsation dampening

GERLACH C RICHARD8 citations66