WO9509293-A -- US3958635-A   UNION OIL CO CALIFORNIA (UNOC);  US4437995-A   REPUBLIC GEOTHERMAL (REPU-Non-standard)   REX R W;  US4476930-A   UNION OIL CO (UNOC)   WATANABE D J;  US4522728-A   UNION OIL CO CALIFORNIA (UNOC);  MONO POWER CO (MONO-Non-standard);  SOUTHERN PACIFIC LAND CO (SPAC-Non-standard)   GALLUP D L,  FEATHERSTO J L;  US4615808-A   UNION OIL CO CALIFORNIA (UNOC);  MONO POWER CO (MONO-Non-standard);  SOUTHERN PACIFIC LAND CO (SPAC-Non-standard)   GALLUP D L,  FEATHERSTO J L;  US4933090-A   CALGON CORP (CALG)   GILL J S,  REY S P,  WIERNIK J H;  US5098578-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D L,  FEATHERSTO J L;  US5288411-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D L,  FEATHERSTONE J L;  WO9509293-A1 -- US717527-x   ;  US3958635-A   UNION OIL CO CALIFORNIA (UNOC);  US4437995-A   REPUBLIC GEOTHERMAL (REPU-Non-standard)   REX R W;  US4476930-A   UNION OIL CO (UNOC)   WATANABE D J;  US4522728-A   UNION OIL CO CALIFORNIA (UNOC);  MONO POWER CO (MONO-Non-standard);  SOUTHERN PACIFIC LAND CO (SPAC-Non-standard)   GALLUP D L,  FEATHERSTO J L;  US4615808-A   UNION OIL CO CALIFORNIA (UNOC);  MONO POWER CO (MONO-Non-standard);  SOUTHERN PACIFIC LAND CO (SPAC-Non-standard)   GALLUP D L,  FEATHERSTO J L;  US4874529-A   UNION OIL CO CALIFORNIA (UNOC)   FEATHERSTO J L,  SPANG S T,  NEWELL D G,  GALLUP D L;  US4933090-A   CALGON CORP (CALG)   GILL J S,  REY S P,  WIERNIK J H;  US5098578-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D L,  FEATHERSTO J L;  US5288411-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D L,  FEATHERSTONE J L;  US5462668-A -- US4476930-A   UNION OIL CO (UNOC)   WATANABE D J;  US4500434-A   UNION OIL CO CALIFORNIA (UNOC);  US4522728-A   UNION OIL CO CALIFORNIA (UNOC);  MONO POWER CO (MONO-Non-standard);  SOUTHERN PACIFIC LAND CO (SPAC-Non-standard)   GALLUP D L,  FEATHERSTO J L;  US4537684-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D,  JOST J W;  US4615808-A   UNION OIL CO CALIFORNIA (UNOC);  MONO POWER CO (MONO-Non-standard);  SOUTHERN PACIFIC LAND CO (SPAC-Non-standard)   GALLUP D L,  FEATHERSTO J L;  US4728438-A   UNION OIL CO CALIFORNIA (UNOC)   FEATHERSTO J L,  SPANG S T,  NEWELL D G;  US4830766-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D L,  JOST J W;  US4869066-A   UNION OIL CO CALIFORNIA (UNOC)   PYE D S,  FEATHERSTO J L,  GALLUP D L,  GRITTERS G A,  HOYER D P,  WONG M M;  US4874529-A   UNION OIL CO CALIFORNIA (UNOC)   FEATHERSTO J L,  SPANG S T,  NEWELL D G,  GALLUP D L;  US5024769-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D L;  US5028340-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D L;  US5032284-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D L,  FEATHERSTO J L;  US5044439-A   EXXON CHEM PATENTS INC (ESSO)   CENEGY L M,  GRIFFITH D E,  HOBBS G W M;  US5061373-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D L;  US5073270-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D L,  JOST J W;  US5085782-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D L,  OBANDO M E;  US5098578-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D L,  FEATHERSTO J L;  US5145515-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D L,  FEATHERSTONE J L,  REVERENTE J P,  MESSER P H,  DOTY A W;  US5145656-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D L,  DOTY A W,  WONG M M,  WONG C F,  FEATHERSTONE J L,  REVERENTE J P,  MESSER P H;  US5167834-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D L,  FEATHERSTONE J L;  US5182027-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D L,  FEATHERSTONE J L;  US5240687-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D L,  DOTY A W,  WONG M M,  WONG C F,  FEATHERSTONE J L,  REVERENTE J P,  MESSER P H;  US5246593-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D L;  US5256301-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D L,  OBANDO M E;  US5268108-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D L,  FEATHERSTONE J L;  US5288411-A   UNION OIL CO CALIFORNIA (UNOC)   GALLUP D L,  FEATHERSTONE J L