Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Catalyst for cracking heavy hydrocarbons

Catalyst for cracking heavy hydrocarbons

US Patent 4308173 · Granted Dec 29, 1981

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Jig2025
Takeover system for an air conditioning apparatus to transmit information from a2024
Remote control device2019
Air conditioner2019
Remote control for air conditioner and air conditioner provided with same2019
Remote control device2019
Ceiling-embedded type air conditioner, and a control method thereof2014
Immersion nozzle exchanging apparatus and immersion nozzle and closing fire plat2006
Immersion nozzle exchanging apparatus and immersion nozzle and closing fire plat2005
Method and apparatus for measuring piston ring tension2001
Process for production of methylnaphthalenes1991
Process for production of dimethylnaphthalenes1990