The most important US distortion-patents I've found so far:
Snoddy & Hobbs, 1965, US3213181, Gibson, Tone modifier for electrically amplified electro-mechanically produced musical tones - http://www.freepatentsonline.com/3213181.pdf
Plunkett, Nuys & Kushner, 1970, US3530224, North Hollywood, Foot controlled coninuously variable preference circuit for musical instruments [wah-wah] - http://www.freepatentsonline.com/3530224.pdf
Freeman, 1970, Cambridge, Mass., US3544694, Pickup and waveforming circuitry for electronic musical instrument - http://www.freepatentsonline.com/3544694.pdf
Holman, 1971, Kaman Co, Conn. US3553338, Music amplifier with tone modifying stage - http://www.freepatentsonline.com/3553338.pdf
Lace, 1973, Motorola, Ill., US3755626, Electronic control circuit - http://www.freepatentsonline.com/3755626.pdf
Jahns, 1976, US3973461,CBS, Fullerton, Distortion control circuit - http://www.freepatentsonline.com/3973461.pdf
Knoppel, 1979, US4150253, LA, ITE Ltd: Signal distortion circuit and method of use - http://www.freepatentsonline.com/4150253.pdf
most important distortion us-patents
Moderator: The Captain
- Bert Ohlsson
- Posts: 2850
- Joined: Tue Jun 29, 2010 5:04 pm
- Location: Stockholm
Who is online
Users browsing this forum: No registered users and 1 guest