Inventor
HELLBAUM RICHARD F
US10 patents
⚠️ This page may combine multiple inventors who share the name “HELLBAUM RICHARD F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NASA
8 patentsUS5632841AMay 27, 1997
Thin layer composite unimorph ferroelectric driver and sensor
NASA250 citations98
US6060811AMay 9, 2000
Advanced layered composite polylaminate electroactive actuator and sensor
NASA214 citations96
US6629341B2Oct 7, 2003
Method of fabricating a piezoelectric composite apparatus
NASA116 citations95
US6071087AJun 6, 2000
Ferroelectric pump
NASA66 citations94
US6734603B2May 11, 2004
Thin layer composite unimorph ferroelectric driver and sensor
NASA25 citations91
US5867991AFeb 9, 1999
Ferroelectric Stirling-cycle refrigerator
NASA20 citations91
US7197798B2Apr 3, 2007
Method of fabricating a composite apparatus
NASA36 citations89
US5961096AOct 5, 1999
Ferroelectric fluid flow control valve
NASA3 citations61