Inventor · disambiguated record
Raymond D. Chu
Also filed as: CHU RAYMOND D
3 granted patents·844 citations·filing 1983–1985
81Inventor score
Files withLIFECARE SERVICES INC3
Top patents by PatentIndex Score
3 records- 0195US4617637AServo control system for a reciprocating piston respiratorLIFECARE SERVICES INC·Filed 1985·Granted Oct 14, 1986·248 cites·11 claims
- 0294US4493614APump for a portable ventilatorLIFECARE SERVICES INC·Filed 1983·Granted Jan 15, 1985·301 cites·24 claims
- 0386US4587967AOxygen enriched reciprocating piston respiratorLIFECARE SERVICES INC·Filed 1985·Granted May 13, 1986·295 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →