Assignee
HALL THERMOTANK PROD LTD
3 granted patents·71 citations·filing 1973–1979
Top patents by PatentIndex Score
3 records- 0188US4261691ARotary screw machine with two intermeshing gate rotors and two independently controlled gate regulating valvesHALL THERMOTANK PROD LTD·Filed 1979·Granted Apr 14, 1981·29 cites·3 claims
- 0275US4020642ACompression systems and compressorsHALL THERMOTANK PROD LTD·Filed 1974·Granted May 3, 1977·27 cites·12 claims
- 0360US3931718ARefrigerant screw compression with liquid refrigerant injectionHALL THERMOTANK PROD LTD·Filed 1973·Granted Jan 13, 1976·15 cites·12 claims
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