Kenneth D. Donnell

📍 Grass Valley, CA: #80 of 334 inventorsTop 25%

🗺 California: #124,610 of 386,348 inventorsTop 35%

Overall (All Time): #1,240,283 of 4,157,543Top 30%

Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
8035025	Acoustic musical instrument with transducers	—	2011-10-11
6441292	Multiple gooseneck microphones and methods for attachment	—	2002-08-27
5614688	Transducer system for acoustic instruments	—	1997-03-25
5010803	Microphone mount	—	1991-04-30