18 Utility Patents
#29 in State College, PA
#3,149 in Pennsylvania
#94,360 in US
#186,213 in the World
Forward Citations = 414
Company Filing History:
The Carborundum Company
4. 1 out of 830,757 patents
Other
5. 1 out of 8,120
where one patent can have more than one assignee
Get your Inventor Badge Today