Robert E. Klemm — 8 Patents at Construction Forms

Robert E. Klemm has been granted 8 US patents while listed as an inventor at Construction Forms. The first was granted in 1982 and the most recent in July 2004. Robert E. Klemm ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Robert E. Klemm in Binghamton, NY, US.

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6766570	Coupling units connecting tubular members having a hardened inner wall for carrying mechanically abrasive fluid concrete	Gary D. Lehnhardt	2004-07-27
6467812	Pipe having replaceable wear resistant lined coupler	Gary D. Lehnhardt	2002-10-22
6375228	Coupling units connecting tubular members having a hardened inner wall for carrying mechanically abrasive fluid concrete	Gary D. Lehnhardt	2002-04-23
5379805	Single solid thin wall pipe for abrasive material having a gradual transition in hardness	Gary D. Lehnhardt	1995-01-10
5097585	Method of forming a composite tubular unit by expanding, low-frequency induction heating and successively quenching	—	1992-03-24
4796814	Semi-liquid cementitious spray nozzle apparatus	Gary D. Lehnhardt	1989-01-10
4640533	Adjustable pipe extender for high pressure lines carrying abrasive materials	—	1987-02-03
4354737	Variable gain screen permitting off-axis viewing with image brightness remaining constant	Martin Dotsko, David L. Peters	1982-10-19	$365,000

Robert E. Klemm — 8 Patents

Issued Patents All Time

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