John Fredrick Ackerman — 2 Patents at GE

John Fredrick Ackerman has been granted 2 US patents while listed as an inventor at GE. The first was granted in 1995 and the most recent in July 2000. John Fredrick Ackerman ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list John Fredrick Ackerman in Cheyenne, WY, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6087775	Exterior shroud lamp	Lionel M. Levinson, John M. Davenport, Laurence Bigio	2000-07-11	$241,772,000
5389853	Incandescent lamp filament with surface crystallites and method of formation	Laurence Bigio, Joseph M. Ranish, Clyde L. Briant, Ronald H. Wilson	1995-02-14	$16,495,000

John Fredrick Ackerman — 2 Patents

Issued Patents All Time

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