Gregory Ritchie

📍 Ypsilanti, MI: #6 of 44 inventorsTop 15%

🗺 Michigan: #358 of 4,492 inventorsTop 8%

Overall (1997): #39,566 of 185,788Top 25%

Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5665005	Sport swing training device	—	1997-09-09
5640719	Hitter's training vest	—	1997-06-24