RN

Roy A. Nelson

EC Epworth Manufacturing Co.: 3 patents #1 of 5Top 20%
LD Ltv Aerospace And Defense: 1 patents #37 of 92Top 45%
📍 Acton, MA: #388 of 1,334 inventorsTop 30%
🗺 Massachusetts: #20,307 of 88,656 inventorsTop 25%
Overall (All Time): #880,852 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
6629542 Rapid installation mobile water modifying system and related methods Steve Carris 2003-10-07
4746069 Centrifugal media mill Raymond A. Entrikin, Randolph C. Grieves 1988-05-24
4684072 Blade for centrifugal media mill Raymond A. Entriken, Randolph C. Grieves 1987-08-04
4582266 Centrifugal media mill Raymond A. Entrikin, Randolph C. Grieves 1986-04-15
4557694 Teaching device and method of using same 1985-12-10
4539786 Biaxial scissors fold, post tensioned structure 1985-09-10