Robert J. Libman

TL The Libman: 139 patents #2 of 29Top 7%

LB Libman Broom: 4 patents #3 of 5Top 60%

📍 Champaign, IL: #6 of 1,105 inventorsTop 1%

🗺 Illinois: #71 of 84,256 inventorsTop 1%

Overall (All Time): #5,975 of 4,157,543Top 1%

153

Patents All Time

Issued Patents All Time

Showing 151–153 of 153 patents

Patent #	Title	Co-Inventors	Date
D284908	Broom cap	—	1986-08-05
4528713	Broom cap	—	1985-07-16
D265697	Whisk broom shroud	William Libman	1982-08-10