Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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John Stofko — 9 Patents

UNUnknown: 4 patents #4,220 of 83,584Top 6%
DeKalb, IL: #15 of 159 inventorsTop 10%
Illinois: #10,163 of 84,256 inventorsTop 15%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
John Stofko has been granted 9 US patents while listed as an inventor at Unknown. The first was granted in 1980 and the most recent in June 2002. John Stofko ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list John Stofko in DeKalb, IL, US.

Patents per Year

Patents granted per year, 1980 to 2002Bar chart with a peak of 1 patents in 1980.peak 11980: 1 patents19801982: 1 patents19821983: 1 patents19831985: 1 patents19851987: 1 patents19871990: 1 patents19901992: 1 patents19922000: 1 patents20002002: 1 patents2002

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
6406786 Bonding of solid lignocellulosic materials 2002-06-18
6083623 Bonding of solid lignocellulosic materials 2000-07-04
5096409 System for vapor injection pressing 1992-03-17
4944823 Composition for bonding solid lignocellulosic materials 1990-07-31
4654259 Method and composition for bonding solid lignocellulosic material 1987-03-31
4504205 Apparatus for converting a conduction press for consolidation of products by heat and pressure to a convection press 1985-03-12
4409170 Production of composite products by consolidation using pressure and convection heating 1983-10-11
4357194 Steam bonding of solid lignocellulosic material 1982-11-02
4183997 Bonding of solid lignocellulosic material 1980-01-15