Inventor · disambiguated record
John T. Harvell
Also filed as: HARVELL JOHN T · HARVELL LEGAL REPRESENTATIVE O
6 granted patents·234 citations·filing 1979–2003
86Inventor score
Top patents by PatentIndex Score
6 records- 0196US4918930AElectronically controlled cryopumpHELIX TECH CORP·Filed 1988·Granted Apr 24, 1990·103 cites·43 claims
- 0287US5157928AElectronically controlled cryopumpHELIX TECH CORP·Filed 1991·Granted Oct 27, 1992·61 cites·27 claims
- 0371US4259844AStacked disc heat exchanger for refrigerator cold fingerHELIX TECH CORP·Filed 1979·Granted Apr 7, 1981·28 cites·11 claims
- 0468US5156007ACryopump with improved second stage passagewayHELIX TECH CORP·Filed 1991·Granted Oct 20, 1992·31 cites·11 claims
- 0555US7155919B2Cryopump temperature control of arraysBROOKS AUTOMATION INC·Filed 2003·Granted Jan 2, 2007·5 cites·19 claims
- 0637US4860546AVacuum system with molecular flow lineHELIX TECH CORP·Filed 1988·Granted Aug 29, 1989·6 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →