F M ASPIN ENGINES LTD has a total of 16 patent applications. Its first patent ever was published in 1956. It filed its patents most often in France, United Kingdom and Canada. Its main competitors in its focus markets engines, pumps and turbines, environmental technology and mechanical elements are HOPKINS PHILLIP R, MELDOLESI RICCARDO and BLACKBURN ANTHONY EDGAR.
# | Country | Total Patents | |
---|---|---|---|
#1 | France | 6 | |
#2 | United Kingdom | 3 | |
#3 | Canada | 2 | |
#4 | Germany | 2 | |
#5 | United States | 2 | |
#6 | Belgium | 1 |
# | Industry | |
---|---|---|
#1 | Engines, pumps and turbines | |
#2 | Environmental technology | |
#3 | Mechanical elements |
# | Name | Total Patents |
---|---|---|
#1 | Aspin Frank Metcalf | 10 |
#2 | Aspin Frank M | 2 |
#3 | Metcalf Aspin Frank | 2 |
Publication | Filing date | Title |
---|---|---|
DE1141490B | Internal combustion engine with a conical rotary valve | |
US2947295A | Internal combustion engines | |
US2926639A | Rotary valves for internal combustion engines | |
GB872216A | Improvements in or relating to rotary valve internal combustion engines | |
GB864453A | Improvements in or relating to internal combustion engines | |
GB859366A | Improvements in or relating to rotary valves for internal combustion engines | |
CA597431A | Rotary valves for internal combustion engines | |
CA610950A | Internal combustion engines |