Assignee
BOLL & KIRCH FILTER
DE·9 granted patents·1 pending application·212 citations·filing 1979–2018
Top patents by PatentIndex Score
10 records- 0190US10238998B2Backflush filter and filter insert for the latterBOLL & KIRCH FILTER·Filed 2015·Granted Mar 26, 2019·14 cites·18 claims
- 0290US4804481AHelical spring apparatus and process for detaching filter cakeBOLL & KIRCH FILTER·Filed 1987·Granted Feb 14, 1989·77 cites·32 claims
- 0380US10035085B2Backflushing filter and filter insert for the sameBOLL & KIRCH FILTER·Filed 2014·Granted Jul 31, 2018·8 cites·30 claims
- 0477US4518501AFlush-back filterBOLL & KIRCH FILTER·Filed 1983·Granted May 21, 1985·41 cites·18 claims
- 0576US4256583AFlush-back filterBOLL & KIRCH FILTER·Filed 1979·Granted Mar 17, 1981·30 cites·9 claims
- 0668US6872310B2Precoated filter for the filtration of flowing mediaBOLL & KIRCH FILTER·Filed 2001·Granted Mar 29, 2005·17 cites·25 claims
- 0752US7250109B2Back-wash filterBOLL & KIRCH FILTER·Filed 2004·Granted Jul 31, 2007·5 cites·6 claims
- 0849US4415448AFlush-back filterBOLL & KIRCH FILTER·Filed 1982·Granted Nov 15, 1983·16 cites·18 claims
- 0948US6890434B2Backflush filter, in particular for filtering lubricant oilBOLL & KIRCH FILTER·Filed 2001·Granted May 10, 2005·4 cites·20 claims
- 1046US2021101097A1Filter element and filter arrangement having fluid filters and filter elementBOLL & KIRCH FILTER·Filed 2018·Application pending·0 cites
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