Assignee
HEIST CORP C H
12 granted patents·231 citations·filing 1975–1996
Top patents by PatentIndex Score
12 records- 0194US4095305ACleaning apparatus for tubes and tube bundlesHEIST CORP C H·Filed 1976·Granted Jun 20, 1978·66 cites·30 claims
- 0281USRE36465EFurnace cleaning apparatusHEIST CORP C H·Filed 1996·Granted Dec 28, 1999·20 cites·18 claims
- 0379US4112535AHigh pressure jet wall cleaner apparatusHEIST CORP C H·Filed 1976·Granted Sep 12, 1978·35 cites·30 claims
- 0478US5381811AFurnace cleaning apparatusHEIST CORP C H·Filed 1994·Granted Jan 17, 1995·19 cites·17 claims
- 0574US4082104APressure relief valveHEIST CORP C H·Filed 1976·Granted Apr 4, 1978·31 cites·23 claims
- 0652US5588593ASafety apparatus for high pressure liquid jet systemHEIST CORP C H·Filed 1995·Granted Dec 31, 1996·12 cites·17 claims
- 0747US4469125AQuick release valveHEIST CORP C H·Filed 1981·Granted Sep 4, 1984·15 cites·7 claims
- 0844US4011625ALance tip constructionHEIST CORP C H·Filed 1975·Granted Mar 15, 1977·8 cites·25 claims
- 0942US5582349AHydroblasting spray gun having an on/off safety switch systemHEIST CORP C H·Filed 1995·Granted Dec 10, 1996·8 cites·9 claims
- 1039US5535949ASafety switch system for hydroblasting operationsHEIST CORP C H·Filed 1995·Granted Jul 16, 1996·7 cites·14 claims
- 1136US4058870ALance tip constructionHEIST CORP C H·Filed 1976·Granted Nov 22, 1977·7 cites·30 claims
- 1234US4073026ALance tip constructionHEIST CORP C H·Filed 1976·Granted Feb 14, 1978·3 cites·18 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →