AW

Albert L. Welker

MC Mine Safety Appliances Company: 2 patents #57 of 243Top 25%
📍 Pittsburgh, PA: #3,179 of 7,570 inventorsTop 45%
🗺 Pennsylvania: #30,495 of 74,527 inventorsTop 45%
Overall (All Time): #2,328,014 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4827778 Liquid separator Clayton J. Bossart, Glenn H. Fertig 1989-05-09
4799374 Liquid separator Clayton J. Bossart, Glenn H. Fertig 1989-01-24