Inventor
SPANGLER RONALD
US5 patents
⚠️ This page may combine multiple inventors who share the name “SPANGLER RONALD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ACTIVE CONTROL EXPERTS INC
4 patentsUS6102426AAug 15, 2000
Adaptive sports implement with tuned damping
ACTIVE CONTROL EXPERTS INC41 citations92
US6485380B2Nov 26, 2002
Sports implement
ACTIVE CONTROL EXPERTS INC35 citations91
US6196935B1Mar 6, 2001
Golf club
ACTIVE CONTROL EXPERTS INC39 citations91
US6086490AJul 11, 2000
Baseball hat
ACTIVE CONTROL EXPERTS INC48 citations91