JH

John E. Harry

PL Perkins Engines Company Limited: 2 patents #40 of 209Top 20%
JL Johnson Matthey Public Limited: 1 patents #446 of 922Top 50%
📍 Oakham, GB: #2 of 21 inventorsTop 10%
Overall (All Time): #1,012,614 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
8388711 Autoselective regenerating particulate filter Colin Peter Garner 2013-03-05
7144448 Autoselective regenerating particulate filter Colin Peter Garner 2006-12-05
4866728 Electric discharge apparatus David Robert Evans 1989-09-12
4631452 Apparatus and method for generating a plurality of electric discharges 1986-12-23
4521890 Plasma arc furnaces Robert F. Burnham, Alan Gibbon 1985-06-04