Eric J. Behrenfeld

📍 Chicago, IL: #2,537 of 13,327 inventorsTop 20%

🗺 Illinois: #17,877 of 84,256 inventorsTop 25%

Overall (All Time): #1,051,539 of 4,157,543Top 30%

Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #	Title	Co-Inventors	Date
5986196	Impact pad for a drum head	—	1999-11-16
5817962	Self-aligning drum beater assembly	—	1998-10-06
5526728	Self-aligning drum beater	—	1996-06-18
D346100	Drum tuning key	—	1994-04-19
5193418	Drum key	—	1993-03-16