David J. Esterl — 2 Patents at Learonal

David J. Esterl has been granted 2 US patents while listed as an inventor at Learonal. The first was granted in 1989 and the most recent in February 1991. David J. Esterl ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list David J. Esterl in Valley Stream, NY, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4994155	High speed tin, lead or tin/lead alloy electroplating	Michael P. Toben, Neil D. Brown, Robert Schetty	1991-02-19	$713,000
4880507	Tin, lead or tin/lead alloy electrolytes for high speed electroplating	Michael P. Toben, Neil D. Brown, Robert Schetty	1989-11-14	$703,000

David J. Esterl — 2 Patents

Issued Patents All Time

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