Assignee
CAMBRIDGE FILTER CORP
15 granted patents·466 citations·filing 1975–2020
Top patents by PatentIndex Score
15 records- 0192US4199387AAir filter fabrication methodCAMBRIDGE FILTER CORP·Filed 1977·Granted Apr 22, 1980·59 cites·5 claims
- 0282US4036054AFluid pressure sensing apparatusCAMBRIDGE FILTER CORP·Filed 1976·Granted Jul 19, 1977·34 cites·12 claims
- 0381US4768386AAir pressure measurement element and system incorporating sameCAMBRIDGE FILTER CORP·Filed 1986·Granted Sep 6, 1988·48 cites·18 claims
- 0481US4227953AMethod of fabricating air filtersCAMBRIDGE FILTER CORP·Filed 1977·Granted Oct 14, 1980·45 cites·7 claims
- 0578US4548068ADownflow air filter construction and methods for air flow adjustment and leak testing thereofCAMBRIDGE FILTER CORP·Filed 1983·Granted Oct 22, 1985·41 cites·15 claims
- 0677US4537812ACorrugated spacers for pleated air filter mediaCAMBRIDGE FILTER CORP·Filed 1983·Granted Aug 27, 1985·48 cites·5 claims
- 0776US4885015AHEPA air filter for high temperature environments and method of fabricationCAMBRIDGE FILTER CORP·Filed 1988·Granted Dec 5, 1989·55 cites·26 claims
- 0872US4600419AHigh efficiency, down flow air filter sealing and support systemCAMBRIDGE FILTER CORP·Filed 1984·Granted Jul 15, 1986·42 cites·22 claims
- 0969US4308041AAir filter cartridgeCAMBRIDGE FILTER CORP·Filed 1981·Granted Dec 29, 1981·33 cites·5 claims
- 1065US4030358APortable air velocity measuring unitCAMBRIDGE FILTER CORP·Filed 1975·Granted Jun 21, 1977·17 cites·10 claims
- 1163US4646558AMethod for leak testing air filtersCAMBRIDGE FILTER CORP·Filed 1985·Granted Mar 3, 1987·28 cites·11 claims
- 1253US11480352B2Device for measuring clogging of filter in air conditioner and air conditionerCAMBRIDGE FILTER CORP·Filed 2018·Granted Oct 25, 2022·0 cites·9 claims
- 1343US4795481AAir filter with high dust-holding capacityCAMBRIDGE FILTER CORP·Filed 1988·Granted Jan 3, 1989·14 cites·5 claims
- 1442US11765810B2Soft X-ray static electricity removal apparatusCAMBRIDGE FILTER CORP·Filed 2020·Granted Sep 19, 2023·0 cites·6 claims
- 1516US3981192AFluid pressure sensing apparatusCAMBRIDGE FILTER CORP·Filed 1975·Granted Sep 21, 1976·2 cites·9 claims
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