Assignee
AIR FILTERS INC
6 granted patents·156 citations·filing 1975–1989
Top patents by PatentIndex Score
6 records- 0189US4015961AFilter bag and couplingAIR FILTERS INC·Filed 1976·Granted Apr 5, 1977·64 cites·9 claims
- 0274US4022695ARemovable filter cloth for a leaf filter of a pressure vesselAIR FILTERS INC·Filed 1975·Granted May 10, 1977·31 cites·4 claims
- 0371US4053416AFilter press assemblyAIR FILTERS INC·Filed 1976·Granted Oct 11, 1977·28 cites·9 claims
- 0453US4936083AGrass catcher for lawn mowersAIR FILTERS INC·Filed 1989·Granted Jun 26, 1990·21 cites·14 claims
- 0539US4028074AVacuum cleaner filter bagAIR FILTERS INC·Filed 1975·Granted Jun 7, 1977·7 cites·6 claims
- 0629US3992748ACarpeting tool for a vacuum cleanerAIR FILTERS INC·Filed 1975·Granted Nov 23, 1976·5 cites·8 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →