John Joseph Kemper

UN Unknown: 1 patents #29,356 of 83,584Top 40%

📍 Torrance, CA: #892 of 2,137 inventorsTop 45%

🗺 California: #185,134 of 386,348 inventorsTop 50%

Overall (All Time): #2,259,757 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5744032	Easily removable oil filter attachment	—	1998-04-28
5024760	Easily removable oil filter	—	1991-06-18