BE

Bart W. Ewald

📍 Seguin, TX: #29 of 98 inventorsTop 30%
🗺 Texas: #52,441 of 125,132 inventorsTop 45%
Overall (All Time): #2,276,287 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5489042 Reusable waste handler for vehicular oil changes — 1996-02-06
5421381 Reusable used oil filter and oil recycling container — 1995-06-06