Patent Assignments Beta

PHILLIPS PETROLEUM COMPANY (Assignor) CHEVRON PHILLIPS CHEMICAL COMPANY LP (Assignee)

Reel/Frame Number: 023660/0063 View this Assignment Record at USPTO


Total Properties Assigned: 8

US6610268 METHOD FOR THE MICROBIOLOGICAL PRODUCTION OF SULFURIC ACID
US20040086450 MATERIALS AND METHOD FOR THE BIOLOGICAL PRODUCTION OF SULFURIC ACID
US5283192 BIOLOGICAL PROCESS FOR ENHANCED MANGANESE AND SILVER RECOVERY FROM REFRACTORY MANGANIFEROUS SILVER ORE
US5248329 BIOLOGICAL PROCESSES FOR RECOVERING HEAVY METALS
US6294362 RAPID FERROUS SULFATE BIOOXIDATION
US6063158 SULFIDE MINERAL CONCENTRATE BIOLEACHING
US6284530 Sulfide mineral concentrate bioleching
US6139602 CARBON CATALYZED LEACHING OF METAL-CONTAINING ORES