Category Archives: Press Release

New U.S. Patent filed & background published

Yesterday, I filed my 3rd Non-Provisional Patent Application, and today published the background theory for it at: https://www.researchgate.net/publication/323686205_Making_Guitars_with_Multiple_Tonal_Characters   The patent involves matched, single-coil pickups for humbucking circuits with reversible magnetic poles. I have a new area for publications of papers … Continue reading

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Coming Patents for 2018-2019

From simple principles of circuit theory, a patent currently in examination (a Non-Provisional Patent Application, or NPPA) develops and enumerates all possible combinations of pickup circuits, from 1 to infinity, which have potentially unique tones. It claims all such circuits … Continue reading

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New PPA filed – June 20, 2017

On June 20, 2017, I filed a new Provisional Patent Application with the U.S. Patent & Trademark Office.  It covers modifications to two types of electro-magnetic guitar pickups, with horizontal and vertical coils, to provide information on the orientation of … Continue reading

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Second Patent Filed

Second Patent Filed: Combinations of Pickups with Potentially Unique Tones – Patent filed June 7, 2017 developing the math and circuit topologies to show how many different tones are possible from 1 to 8 single-coil pickups (Table 1), 1 to … Continue reading

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Patent Pending Dual Humbucker Switching Beats 3-way Switch

See  Preliminary Results of Patent Pending 20-way Dual Humbucker Switching

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USPTO Official Gazette notice for 9/13/2016

Patent 9,401,134 Acoustic-electric stringed instrument with improved body, electric pickup placement, pickup switching and electronic circuit Will appear in the 9/13/2016 U.S. Patent and Trademark Office Official Gazette, listed as being offered for license (only, not sale).

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General Equations for Humbucking Pairs

(c) 2016 Don Baker Combinations of pickups don’t tell you how to connect them together.  They only tell you how many you have to work with.  This article, General Equations for Combinations of Humbucking Pairs, provides development and equations for: … Continue reading

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Open Letter to Pickup Makers

Good Morning, My name is Don Baker.   I created the web site TulsaSoundGuitars.com and the sub-site HumbuckingPairs.com.  Also the web sites aquarien.com, android-originals.com and theandroidsaxe.com.  The U.S. Patent and Trademark Office recently issued Patent 9,401,134 to me, described at: https://patents.google.com/patent/US20160027422A1/en … Continue reading

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Humbucking Quad PPA – 10s, 100s, 1000s of tones

Excerpts from Provisional Patent Application Filed for Humbucking Quads So KK number of humbuckers can have: KK = 2, 3, 4, 5                                    humbucking pairs 2*KK = 4, 6, 8, 10                              humbucking pair tones KK = 1, 3, 6, … Continue reading

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Fender(tm) – This means you

I got my U.S. Patent 9,401,134, filed July 23, 2014, issued July 26, 2014, out of the mailbox this morning.  Nice, fancy thing it is, all printed and bound, with an embossed gold seal of the United States Patent and … Continue reading

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