Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Steven E. Schaefer — 5 Patents

PIPacc Systems I.P.: 5 patents #2 of 2Top 100%
Cincinnati, OH: #1,951 of 8,043 inventorsTop 25%
Ohio: #15,931 of 73,341 inventorsTop 25%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Steven E. Schaefer has been granted 5 US patents while listed as an inventor at Pacc Systems I.P.. The first was granted in 2005 and the most recent in September 2011. Steven E. Schaefer ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Steven E. Schaefer in Cincinnati, OH, US.

Patents per Year

Patents granted per year, 2005 to 2011Bar chart with a peak of 3 patents in 2008.peak 32005: 1 patents20052008: 3 patents20082011: 1 patents2011

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
8011145 Segmented joint for masonry construction P. Michael Collins 2011-09-06
D580260 Masonry tie for cavity wall construction P. Michael Collins 2008-11-11
7421826 Air circulation board for cavity wall construction P. Michael Collins 2008-09-09
D563215 Masonry tie for cavity wall construction P. Michael Collins 2008-03-04
6964136 Flashing and weep apparatus for masonry wall window and door installations P. Michael Collins 2005-11-15