Patent comparison

Compare Patents

Compare two patents side by side. Add ?a=us/7657849&b=us/8046721 to the URL to load specific patents.

US 4259444

How Scientists Created Bacteria That Eat Oil Spills

A 1981 patent for genetically engineered bacteria capable of breaking down multiple types of oil, which became the first living organism ever patented.

Statusexpired

Granted1981

Expires1992

Claims22

Forward citations28

Prior art3

AssigneeGeneral Electric Co

InventorsAnanda M. Chakrabarty

Read full analysis →

Patent B

Add ?b=us/7657849 to compare

Find a patent

How to use

Bookmark a comparison URL to save it. Format: /compare?a=[country]/[number]&b=[country]/[number]. Example: /compare?a=us/7657849&b=us/8046721