John D. Hannigan

📍 Bowie, MD: #3 of 9 inventorsTop 35%

🗺 Maryland: #225 of 1,164 inventorsTop 20%

Overall (1989): #95,109 of 140,708Top 70%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4830338	Window opening facilitator	—	1989-05-16