RH

Richard C. Hartwig

WC W.R. Grace & Co.-Conn.: 3 patents #7 of 188Top 4%
📍 Laurel, MD: #2 of 27 inventorsTop 8%
🗺 Maryland: #38 of 1,619 inventorsTop 3%
Overall (1994): #9,495 of 165,921Top 6%
3
Patents 1994

Issued Patents 1994

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5362581 Battery separator Victor S. Chang, Joseph T. Lundquist, Marc E. Parham, Anthony J. Laccetti 1994-11-08
5362582 Battery separator Victor S. Chang, Joseph T. Lundquist, Marc E. Parham, James K. Kung, James A. Avtges +1 more 1994-11-08
5346788 Microporous polyurethane based battery separator Victor S. Chang, Joseph T. Lundquist, Marc E. Parham, Anthony J. Laccetti 1994-09-13