AMERICAN AIR FILTER CO has a total of 1,803 patent applications. Its first patent ever was published in 1924. It filed its patents most often in United States, Canada and Germany. Its main competitors in its focus markets chemical engineering, machines and thermal processes are CAMBRIDGE FILTER CORP, HOWDEN JAMES AUSTRALIA PTY and CAMBRIDGE FILTER MFG CORP.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 584 | |
#2 | Canada | 200 | |
#3 | Germany | 174 | |
#4 | United Kingdom | 174 | |
#5 | France | 152 | |
#6 | Spain | 69 | |
#7 | Sweden | 66 | |
#8 | Italy | 44 | |
#9 | Switzerland | 38 | |
#10 | South Africa | 38 | |
#11 | Brazil | 37 | |
#12 | Japan | 32 | |
#13 | Australia | 31 | |
#14 | Netherlands | 27 | |
#15 | Belgium | 25 | |
#16 | Argentina | 20 | |
#17 | Denmark | 19 | |
#18 | Austria | 15 | |
#19 | Finland | 13 | |
#20 | Norway | 13 | |
#21 | German Democratic Republic | 6 | |
#22 | Yugoslavia (Serbia and Montenegro) | 6 | |
#23 | Poland | 4 | |
#24 | WIPO (World Intellectual Property Organization) | 4 | |
#25 | Philippines | 3 | |
#26 | USSR (Union of Socialist Soviet Republics) | 3 | |
#27 | Mexico | 2 | |
#28 | Czechoslovakia | 1 | |
#29 | EPO (European Patent Office) | 1 | |
#30 | Greece | 1 | |
#31 | Republic of Korea | 1 |
# | Industry | |
---|---|---|
#1 | Chemical engineering | |
#2 | Machines | |
#3 | Thermal processes | |
#4 | Mechanical elements | |
#5 | Textiles and paper | |
#6 | Engines, pumps and turbines |
# | Name | Total Patents |
---|---|---|
#1 | Revell Alan E | 50 |
#2 | Getzin Allan R | 34 |
#3 | Rivers Richard D | 31 |
#4 | O'Dell Leonard J | 26 |
#5 | Westlin Karl L | 25 |
#6 | Dahlem Francis E | 22 |
#7 | Sexton Robert W | 19 |
#8 | Arthur Nutting | 18 |
#9 | Huntington Robert G | 18 |
#10 | Mutchler Paul A | 17 |
Publication | Filing date | Title |
---|---|---|
WO2015061647A1 | Apparatus and method for regulating filter media pack pleat spacing | |
WO2015027185A1 | Canister filter with prefiltration | |
WO2015027183A1 | Prefilter wrap | |
US9320996B1 | Filter housing utilizing heat shrinkable materials | |
US2014196423A1 | Tactile Air Filter Media | |
MX2013005145A | Eptfe filter for aseptic pharmaceutical use and method of using. | |
US4441898A | Discharge apparatus for removing granular filter material from a filter housing and a filter apparatus having same | |
US4312648A | Pocket filter arrangement | |
US4306896A | Filter bag anchoring arrangement | |
US4300927A | Pocket filter arrangement | |
US4308887A | Gas damper | |
US4342153A | Pitch diameter gauge for a variable speed pulley | |
US4309978A | Forced air heater | |
GB2050199A | Filter bag-mounting arrangement | |
US4266956A | Filter clamping device | |
US4280595A | Positive brake for a vehicle wheel | |
US4326866A | Discharge apparatus for removing granular filter material from a filter housing and a filter apparatus having same | |
US4253856A | Filter arrangement | |
US4255175A | Gas separation filter device having a handle | |
US4272262A | Gas-separation filter device |