Stephen M. Illman

SP Stc Plc: 1 patents #73 of 231Top 35%

📍 Catford, GB: #3 of 5 inventorsTop 60%

Overall (All Time): #3,953,423 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4750166	Conference circuit	Martin Sharpe	1988-06-07