Assignee
YT LI ENGINEERING INC
US·7 granted patents·178 citations·filing 1990–1998
Top patents by PatentIndex Score
7 records- 0176US5953924AApparatus, process and system for tube and whip rod heat exchangerYT LI ENGINEERING INC·Filed 1998·Granted Sep 21, 1999·39 cites·12 claims
- 0265US5221439AOrbital tube evaporator with improved heat transferYT LI ENGINEERING INC·Filed 1991·Granted Jun 22, 1993·32 cites·10 claims
- 0364US5363660AOrbital type freezing apparatus and methodYT LI ENGINEERING INC·Filed 1993·Granted Nov 15, 1994·31 cites·38 claims
- 0460US5385645AHeat transfer apparatus with positive drive orbital whip rodYT LI ENGINEERING INC·Filed 1993·Granted Jan 31, 1995·20 cites·15 claims
- 0557US5971061AEdge-hanging orbital rod support and drive for vertical tube-type heat exchangerYT LI ENGINEERING INC·Filed 1998·Granted Oct 26, 1999·21 cites·16 claims
- 0649US5768894AApparatus, process and system for tube and whip rod heat exchangerYT LI ENGINEERING INC·Filed 1994·Granted Jun 23, 1998·20 cites·13 claims
- 0743US5013446AChromatographic gel contactor and processYT LI ENGINEERING INC·Filed 1990·Granted May 7, 1991·15 cites·23 claims
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