Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method of rerefining waste oil by distillation and extraction

Method of rerefining waste oil by distillation and extraction

US Patent 6117309 · Granted Sep 12, 2000

Estimated economic value: $1,834,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

System, method and apparatus for wall support of ceiling suspension grid2023
Rotary servo valve2023
System, method and apparatus for wall support of ceiling suspension grid2021
System, method and apparatus for wall support of ceiling suspension grid2020
System and apparatus for a yoke structure in a ceiling suspension2020
Method and apparatus for recovering synthetic oils from composite oil streams2019
Method and apparatus for recovering synthetic oils from composite oil streams2019
System, method and apparatus for wall support of ceiling suspension grid2018
Post hydrotreatment finishing of lubricant distillates2018
Method for producing base lubricating oil from oils recovered from combustion en2017
Post hydrotreatment finishing of lubricant distillates2016
Method for producing base lubricating oil from waste oil2015