Google Patents - 2026-10-04

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US4806834A (Earl Koenig) - cited in Guidelines p.25-30 [read]

• Title: "Electrical circuit for inductance conductors, transformers and motors". Inventor Earl Koenig, individual (no assignee). Filed 1987-04-16, granted 1989-02-21 [web].
• Abstract [web]: "two coils of electrically conductive wire are coiled about a bar of magnetizable material such that they are disposed in mirror image symmetrical relation with each other. A tap is connected to one end of each coil to conduct an electrical current thereto to magnetize the bar. A second tap is connected to the other ends of each coil..."
• Page lists 8 citing patents and these related numbers (citations and cited-by, not family): US5191255A, US5886507A, US5939838A, US5977707A, US6707364B1, US20110084792A1, WO2018017895A1, US9934897B1, FR2638277A1, JPH03110913A, DE213250C, US1345712A, DE396395C. Not examined.
• Bearing: a granted patent with the mirror-image (bucking) two-coil geometry; supports claim 5's point that the geometry appears in others' work. The patent's own claims about performance were not read on this run.

Not searched (time)

• Patents by Chris Sykes: none expected (he says his work "Can not be Patented!"), not checked.
• US4210859A (cited by a forum member as a conditioning analogue), Figuera 1908 Spanish patents, Jensen, Melnichenko (RU) - next run.