Heinz Keller — 12 Patents at IBM

Heinz Keller has been granted 12 US patents while listed as an inventor at IBM. The first was granted in 1983 and the most recent in December 2002. Heinz Keller ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Heinz Keller in Rüschlikon, CH.

Patents per Year

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Showing 1–12 of 12 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6498496	Device for detecting membrane leaks in a diaphragm pump	Gerhard Rohner, Jens Plechinger, Hans-Juergen Diekmann, Eberhard Bock	2002-12-24
6193941	Process for producing a metallurgical raw material from oil containing heavy metals	Michael Buxel	2001-02-27
5329712	Frame for the display of pictures	—	1994-07-19
4901526	Bottom unit for the combustion chamber of a liquid-fueled rocket	Thomas Barth	1990-02-20
4862158	Extension arrangement and station connecting method for a ring communication system	Johann Mueller	1989-08-29
4798960	Device for the treatment of substances by UV radiation	Martin Lehner, Reinhard Born, Hans-Georg Lotz	1989-01-17
4779337	Device for the stencil-ferrule mounting of screen printing cylinders	—	1988-10-25
4752308	Process for the reconditioning of quench water	Adrian Brandl, Herbert Wehner	1988-06-21
4731784	Communication system comprising overlayed multiple-access transmission networks	Johann Mueller, Ernst H. Rothauser, Erwin A. Zurfluh	1988-03-15	$21,231,000
4705608	Process for making screen printing fabrics for screen printing cylinders	Heinz Brocker, Martin Lehner	1987-11-10
4703690	Device for pre-emulsifying of ink emulsion in offset printing apparatus	—	1987-11-03
4417242	Method for connecting or disconnecting selected stations in a ring communication system, and ring communication system including selectively connectable stations	Urs Bapst, Heinrich Meyr, Hans R. Muller	1983-11-22	$12,775,000

Heinz Keller — 12 Patents

Patents per Year

Issued Patents All Time

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