Spyros Theodoropulos

📍 Yorktown Heights, NY: #3 of 39 inventorsTop 8%

🗺 New York: #235 of 5,342 inventorsTop 5%

Overall (1989): #7,104 of 140,708Top 6%

Patents 1989

Issued Patents 1989

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4873318	Oxazine-ureas and thiazine urea chromophors	—	1989-10-10
4822878	Cyclic anhydride derivatives of chromophors	—	1989-04-18
4810782	Di-ureadopyridines and their chelates	—	1989-03-07