David Fonseca

📍 Lawrence, KS: #229 of 744 inventorsTop 35%

🗺 Kansas: #3,182 of 12,005 inventorsTop 30%

Overall (All Time): #1,600,558 of 4,157,543Top 40%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
6942038	Mud diverter and method for horizontal drilling	—	2005-09-13
5640447	Debit calling label	—	1997-06-17
5629977	Method and assembly for providing telephone calling credit in combination with a greeting card	—	1997-05-13