Gerald E. Kunkle has been granted 15 US patents while listed as an inventor at Ppg Industries . The first was granted in 1980 and the most recent in June 1989. Gerald E. Kunkle ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list Gerald E. Kunkle in New Kensington, PA, US.
Patents per Year Patents granted per year, 1980 to 1989 Bar chart with a peak of 4 patents in 1986. peak 4 1980: 1 patents 1980 1983: 2 patents 1983 1985: 1 patents 1985 1986: 4 patents 1986 1987: 2 patents 1987 1988: 4 patents 1988 1989: 1 patents 1989
Issued Patents All Time
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Showing 1–15 of 15 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
4838919 Pretreatment of fused cast refractories George A. Pecoraro 1989-06-13
$9,326,000
4789390 Batch melting vessel lid cooling construction George A. Pecoraro , Henry M. Demarest, Jr. 1988-12-06
$7,404,000
4749400 Discrete glass sheet cutting Raymond J. Mouly , DeWitt W. Lampman , Jack A. Bricker 1988-06-07
$11,910,000
4741749 Vertical delivery arrangement for float glass process John E. Sensi 1988-05-03
$4,972,000
4738938 Melting and vacuum refining of glass or the like and composition of sheet Wright M. Welton , Ronald L. Schwenninger 1988-04-19
$4,175,000
4654068 Apparatus and method for ablating liquefaction of materials Joseph M. Matesa 1987-03-31
$29,312,000
4634461 Method of melting raw materials for glass or the like with staged combustion and preheating Henry M. Demarest, Jr. , Clement C. Moxie 1987-01-06
$4,999,000
4632687 Method of melting raw materials for glass or the like using solid fuels or fuel-batch mixtures Henry M. Demarest, Jr. , Larry J. Shelestak 1986-12-30
$7,909,000
RE32317 Glass batch liquefaction Joseph M. Matesa 1986-12-30
4604121 Method of pretreating glass batch Henry M. Demarest, Jr. , Joseph M. Matesa 1986-08-05
$9,573,000
4564379 Method for ablating liquefaction of materials Joseph M. Matesa 1986-01-14
$3,515,000
4559071 Ablating liquefaction method Joseph M. Matesa 1985-12-17
$8,207,000
4395272 Pressure sizing of float glass John E. Sensi , Joseph A. Gulotta 1983-07-26
$7,350,000
4381934 Glass batch liquefaction Joseph M. Matesa 1983-05-03
$4,573,000
4197107 Convex bottomed float glass forming chamber entrance — 1980-04-08
$519,000