Gregory H. Petrak

📍 Lakewood, CO: #3 of 63 inventorsTop 5%

🗺 Colorado: #172 of 1,967 inventorsTop 9%

Overall (1997): #39,575 of 185,788Top 25%

Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5687972	Unitary oil seal assembly	—	1997-11-18
5655781	Unitized radial and facial seal	—	1997-08-12