JM

John L. Margrave

📍 Houston, TX: #83 of 1,005 inventorsTop 9%
🗺 Texas: #541 of 5,943 inventorsTop 10%
Overall (1997): #35,253 of 185,788Top 20%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5622695 Anatomical and biological preservative and method James W. Campbell 1997-04-22
5607668 Embalming composition and method James W. Campbell 1997-03-04