Category Archives: Pickup circuits & switching

New page with U.S. Patents for licensing

Posted on February 16, 2021 by admin

The following U.S. Patents are available for licensing. Click Here for the index page, and click on the links below to reach each patent. They have all been modified upgraded from the standard uspto.gov download to include drawings and properly … Continue reading →

Posted in Humbucking Pairs, Patent news, Pickup circuits & switching, Uncategorized | Tagged , , , , , , , , , , , | Leave a comment

On the Topologies of Guitar Pickup Circuits

Posted on February 25, 2018 by admin

How do you get 620 potentially unique guitar tones from 4 single-coil pickups, or 310 from 3 humbuckers? Read here: https://www.researchgate.net/publication/323390784_On_the_Topologies_of_Guitar_Pickup_Circuits Abstract: Many of the U.S. patents involving switching circuits for electric guitar pickups have failed in the marketplace because … Continue reading →

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The Walkin Squawkin Patent Examiner Blues – Part 1

Posted on February 16, 2018 by admin

I got this in an e-mail from my U.S. Patent Office Patent Examiner on Jan 24th, 2018: “I cannot conceive of any way to generate an “infinite” (your word) table that would accommodate the breadth of claim 28. You mentioned … Continue reading →

Posted in Humor/Satire, Patent news, Pickup circuits & switching, Tutorial | Tagged , , , , , , | Leave a comment

Why guitar pickup switching patents fail in the marketplace

Posted on February 15, 2018 by admin

I’ve reviewed some more guitar pickups switching patents lately, and most if not all of the ones I’ve seen suffer design flaws that generally cause them to fail in the marketplace, for some of the following reasons: They almost never … Continue reading →

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