HL

Hubert A. Lechavelier

EC Engelhard Minerals & Chemicals: 2 patents #11 of 65Top 20%
📍 Piscataway, NJ: #380 of 879 inventorsTop 45%
🗺 New Jersey: #29,833 of 69,400 inventorsTop 45%
Overall (All Time): #2,371,720 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4293334 Recovery of metals Walter Drobot 1981-10-06
4289531 Process for recovering precious metals Walter Drobot 1981-09-15