Inventor · disambiguated record
David W. Cheng
Also filed as: CHENG DAVID · CHENG DAVID W · CHENG DAVID W W · CHENG DAVID WAI-WING
9 granted patents·2 pending applications·135 citations·filing 1984–2024
89Inventor score
Top patents by PatentIndex Score
11 records- 0178US5221250ACoding of maximum operating speed on centrifuge rotors and detection thereofBECKMAN INSTRUMENTS INC·Filed 1991·Granted Jun 22, 1993·32 cites·5 claims
- 0269US8095441B2Method and system for administering money laundering prevention programWU BRUCE·Filed 2005·Granted Jan 10, 2012·11 cites·21 claims
- 0366US4865090AVial holderBECKMAN INSTRUMENTS INC·Filed 1988·Granted Sep 12, 1989·26 cites·13 claims
- 0465US4850951ALid retention apparatus for coverage centrifuge rotorsBECKMAN INSTRUMENTS INC·Filed 1988·Granted Jul 25, 1989·24 cites·2 claims
- 0561US4568325ABreakaway base for an ultracentrifuge rotorBECKMAN INSTRUMENTS INC·Filed 1984·Granted Feb 4, 1986·16 cites·20 claims
- 0653US2024361543A1Multi-functional device mount and apparatus utilizing sameINSCOPIX INC·Filed 2024·Application pending·0 cites
- 0751US5752910AVariable threshold setting for rotor identification in centrifugesBECKMAN INSTRUMENTS INC·Filed 1992·Granted May 19, 1998·11 cites·5 claims
- 0846US6024687ACentrifuge rotor lockBECKMAN COULTER INC·Filed 1998·Granted Feb 15, 2000·9 cites·17 claims
- 0942US2021059578A1Reagent coated lensesINSCOPIX INC·Filed 2020·Application pending·0 cites
- 1035US5383838ATachometer and rotor identification system for centrifugesBECKMAN INSTRUMENTS INC·Filed 1992·Granted Jan 24, 1995·6 cites·13 claims
- 1132USD1075882SDevice holderINSCOPIX INC·Filed 2023·Granted May 20, 2025·0 cites·1 claims
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