Assignee
HENDEE ENTERPRISES INC
US·3 granted patents·49 citations·filing 1988–1997
Top patents by PatentIndex Score
3 records- 0163US4902173ASystem and filter for preventing contamination of particulate material in railroad car during transportation and unloadingHENDEE ENTERPRISES INC·Filed 1988·Granted Feb 20, 1990·29 cites·9 claims
- 0248US5794539AMoisture barrier filter seal for hopper rail car hatchesHENDEE ENTERPRISES INC·Filed 1997·Granted Aug 18, 1998·13 cites·22 claims
- 0336US5628254AMoisture barrier, filter seal for hopper rail car hatchesHENDEE ENTERPRISES INC·Filed 1995·Granted May 13, 1997·7 cites·12 claims
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