Frederick P. Keller — 8 Patents at Cascade Engineering

Frederick P. Keller has been granted 8 US patents while listed as an inventor at Cascade Engineering. The first was granted in 1985 and the most recent in April 2011. Frederick P. Keller ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Frederick P. Keller in Grand Rapids, MI, US.

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #	Title	Co-Inventors	Date
7921782	Individual transportation system	Benedikt J. Gaegauf	2011-04-12
6758738	Damper with integral seal	—	2004-07-06
6547301	Dashmat with an air distribution system	—	2003-04-15
6245415	Structural article of relatively large dimensions	John E. Misner, Dan Fild, Donald E. Jay	2001-06-12
6227840	Apparatus for molding relatively large articles	John E. Misner, Dan Fild	2001-05-08
6146565	Method of forming a heat expandable acoustic baffle	—	2000-11-14
6063315	Gas-assisted injection molding of large panels with sequential gating	John E. Misner, Dan Fild	2000-05-16
4496332	Rotary vibration isolator bushing	Theodore C. Zwiep	1985-01-29

Frederick P. Keller — 8 Patents

Issued Patents All Time

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