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 9397374

How to Grade Used Batteries for a Second Life

This patent describes a system that reads electrical characteristics and usage history from a rechargeable battery module to determine if it's good enough to be used again for a di…

Statusactive

Granted2016

Expires2032

Claims33

Forward citations4

Prior art22

AssigneeHitachi Automotive Systems

InventorsAkihiko Emori, Shuko Yamauchi +1

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