John J. Bartholomew has been granted 8 US patents while listed as an inventor at Eltech Systems . The first was granted in 1993 and the most recent in November 1999. John J. Bartholomew ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list John J. Bartholomew in Mentor, OH, US.
Patents per Year Patents granted per year, 1993 to 1999 Bar chart with a peak of 3 patents in 1999. peak 3 1993: 2 patents 1993 1994: 1 patents 1994 1995: 1 patents 1995 1998: 1 patents 1998 1999: 3 patents 1999
Issued Patents All Time
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Showing 1–8 of 8 patents
Patent # Title Co-Inventors Date
5989170 Insulating roll cover Charles M. Hart , James D. Rogers , Harry L. King 1999-11-23
5952055 Method of protecting reinforced concrete structures Carl W. Brown, Jr. , John E. Bennett , Barry L. Martin , Thomas J. Schue 1999-09-14
5879817 Reinforced concrete structure Carl W. Brown, Jr. , John E. Bennett , Barry L. Martin , Thomas J. Schue 1999-03-09
5709639 Insulating roll cover Charles M. Hart , James D. Rogers , Harry L. King 1998-01-20
5378219 Insulating roll cover Charles M. Hart , James D. Rogers , Harry L. King 1995-01-03
5292411 Method and apparatus for cathodically protecting reinforced concrete structures John E. Bennett , Barry L. Martin , Thomas A. Mitchell 1994-03-08
5205398 Insulating roll cover Charles M. Hart , James D. Rogers , Harry L. King 1993-04-27
5200259 Fiber-filled concrete overlay in cathodic protection Thomas J. Gilligan 1993-04-06