Assignee
NAT HEAT EXCHANGE CLEANING CORPORATION
US·4 granted patents·1 citations·filing 2014–2015
Top patents by PatentIndex Score
4 records- 0144US9862011B2Tube cleaning dart having bladesNAT HEAT EXCHANGE CLEANING CORPORATION·Filed 2015·Granted Jan 9, 2018·0 cites·17 claims
- 0227USD831910SDart having bristles and a scraperNAT HEAT EXCHANGE CLEANING CORPORATION·Filed 2015·Granted Oct 23, 2018·1 cites·1 claims
- 0323USD807596SDart for cleaning tubesNAT HEAT EXCHANGE CLEANING CORPORATION·Filed 2014·Granted Jan 9, 2018·0 cites·1 claims
- 0423USD807597SDart having blades for cleaning tubesNAT HEAT EXCHANGE CLEANING CORPORATION·Filed 2015·Granted Jan 9, 2018·0 cites·1 claims
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