Inventor
VAN DER GRAAF FREDERIK
NL7 patents
⚠️ This page may combine multiple inventors who share the name “VAN DER GRAAF FREDERIK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BERKIN BV
3 patentsUS5970790AOct 26, 1999
Method and device for measuring flows of fluids, based on temperature-differences between two heat-conducting bodies, one of which contains the fluid-flow
BERKIN BV5 citations59
US6511860B1Jan 28, 2003
Method for manufacturing a thermopile on an electrically insulating substrate
BERKIN BV2 citations56
US6713833B2Mar 30, 2004
Thermopile on an electrical insulating substrate
BERKIN BV1 citations41