Solvent Deasphalting/ solvent deasphalters/ solvent de-asphalters and its variations are trademarked by several licensors and are known by various names.
|Four main licensors|
|UOP / Wood Foster Wheeler||UOP/FW-SDA™, SDA-RT. UOP DEMEX™. UOP and FosterWheeler merged their technologies in 1996.|
|Axens||Solvahl™ process developed by Asvahl|
|RIPP (Research institute of Petroleum Products)||Superficial solvent deasphalting-DAO Hydrotreating-FCC technology (SHF) developed by Sinopec|
|Other companies working with SDA|
|Pörner Group / SDA Plus, Well Resources - SELEX-Asp, McDermott, Shell, Petrobras, ExxonMobil, ThyssenKrup, PetroChina|