Inventor
OPPENHEIM MICHAEL
US6 patents
⚠️ This page may combine multiple inventors who share the name “OPPENHEIM MICHAEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FIRST ACT INC
5 patentsUSD494060SAug 10, 2004
Drum box
FIRST ACT INC21 citations91
US7290653B2Nov 6, 2007
Packaged musical instrument
FIRST ACT INC17 citations83
USD506131SJun 14, 2005
Drum box
FIRST ACT INC6 citations72
USD499020SNov 30, 2004
Drum box
FIRST ACT INC11 citations72
US7608769B2Oct 27, 2009
Packaged drum set
FIRST ACT INC4 citations61