John Scharff has been granted 5 US patents while listed as an inventor at Pella . The first was granted in 1994 and the most recent in October 2006. John Scharff ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list John Scharff in Pella, IA, US.
Patents per Year Patents granted per year, 1994 to 2006 Bar chart with a peak of 2 patents in 2006. peak 2 1994: 1 patents 1994 1999: 1 patents 1999 2004: 1 patents 2004 2006: 2 patents 2006
Issued Patents All Time
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Showing 1–5 of 5 patents
Patent # Title Co-Inventors Date
7124546 Muntin bar connector with positioning tabs Lawrence A. Schneider 2006-10-24
7066233 Sliding operator for between the glass window coverings Seth Masters , Paul Edward Smith, JR. , Steven D. Lauritsen , Paul Martin Pfitzenmaier 2006-06-27
6746175 Fenestration corner lock Michael D. Gonnerman , Andrew P. Schirz 2004-06-08
5934351 Sliding tilt mechanism for horizontal slatted blinds Rashid Bharucha , Gregory D. De Boer , William R. Guthrie , Howard C. Anderson 1999-08-10
5299399 Window panel with breather system Bruce A. Baier , Bruce Hagemeyer , Merlan J. Rolffs 1994-04-05