DC

David B. Crowhurst

JL J.E. Thomas Specialties Limited: 2 patents #2 of 4Top 50%
📍 Lindsay, CA: #1 of 5 inventorsTop 20%
Overall (1997): #43,255 of 185,788Top 25%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5638035 Coaxial cable distribution network having a reversible directional coupler Robert L. Romerein, Zdenek J. Nepovim, Kenneth W. Lynes 1997-06-10
5635881 Switched pedestal/aerial port coaxial cable distribution network Robert L. Romerein 1997-06-03