Inventor
HOYER DANIEL P
US7 patents
Patents
7 patentsUS5405171AApr 11, 1995
Dual gasket lined pipe connector
UNION OIL CO127 citations93
US5649568AJul 22, 1997
Glass fiber reinforced cement liners for pipelines and casings
UNION OIL CO19 citations90
US4900360AFeb 13, 1990
Process for using sludge from geothermal brine to make concrete and concrete composition
UNION OIL CO26 citations88
US4761182AAug 2, 1988
Process for using sludge from geothermal brine to make concrete and concrete composition
UNION OIL CO25 citations88
US4763479AAug 16, 1988
Method for the production of useable steam and non-toxic solids from geothermal brine
UNION OIL CO24 citations81
US4869066ASep 26, 1989
Method for the production of usable steam and non-toxic solids from geothermal brine
UNION OIL CO11 citations71
US5566986AOct 22, 1996
Dual gasket lined pipe connector
UNION OIL CO11 citations68