Inventor · disambiguated record
John F. Krumwiede
Also filed as: KRUMWIEDE JOHN F
21 granted patents·1 pending application·1,031 citations·filing 1981–2000
97Inventor score
Top patents by PatentIndex Score
22 records- 0198US5393593ADark gray, infrared absorbing glass composition and coated glass for privacy glazingPPG INDUSTRIES INC·Filed 1993·Granted Feb 28, 1995·310 cites·47 claims
- 0293US5023210ANeutral gray, low transmittance, nickel-free glassPPG INDUSTRIES INC·Filed 1989·Granted Jun 11, 1991·112 cites·11 claims
- 0392US5593929AUltraviolet absorbing green tinted glassPPG INDUSTRIES INC·Filed 1992·Granted Jan 14, 1997·74 cites·109 claims
- 0491US4600425ABubbler with protective sleeve or fluid coolant jacketPPG INDUSTRIES INC·Filed 1985·Granted Jul 15, 1986·35 cites·11 claims
- 0591US4349367AMethod of recovering waste heat from furnace flue gases using a granular heat exchange meansPPG INDUSTRIES INC·Filed 1981·Granted Sep 14, 1982·48 cites·25 claims
- 0687US4818265ABarrier apparatus and method of use for melting and refining glass or the likePPG INDUSTRIES INC·Filed 1987·Granted Apr 4, 1989·36 cites·12 claims
- 0784US4372770AMelting glass with two stage NOx controlPPG INDUSTRIES INC·Filed 1981·Granted Feb 8, 1983·55 cites·10 claims
- 0883US4350512AGlass melting method using cullet as heat recovery and particulate collection mediumPPG INDUSTRIES INC·Filed 1981·Granted Sep 21, 1982·28 cites·14 claims
- 0981US4410347AGlass melting method using cullet as particulate collection mediumPPG INDUSTRIES INC·Filed 1982·Granted Oct 18, 1983·25 cites·9 claims
- 1079US6114264AGray glass compositionPPG IND OHIO INC·Filed 1995·Granted Sep 5, 2000·64 cites·35 claims
- 1178US6413893B1Green privacy glassPPG IND OHIO INC·Filed 1999·Granted Jul 2, 2002·45 cites·52 claims
- 1277US5565388ABronze glass compositionPPG INDUSTRIES INC·Filed 1995·Granted Oct 15, 1996·43 cites·19 claims
- 1376US4565560AEnergy efficient and anti-corrosive burner nozzle construction and installation configurationPPG INDUSTRIES INC·Filed 1984·Granted Jan 21, 1986·21 cites·14 claims
- 1474US6455452B1Bronze privacy glassPPG IND OHIO INC·Filed 2000·Granted Sep 24, 2002·13 cites·43 claims
- 1574US6274523B1Gray glass compositionPPG IND OHIO INC·Filed 1995·Granted Aug 14, 2001·34 cites·21 claims
- 1671US6103650AGreen privacy glassPPG IND OHIO INC·Filed 1997·Granted Aug 15, 2000·34 cites·32 claims
- 1756US4544396AMethod and apparatus for controlling currents in glass melterPPG INDUSTRIES INC·Filed 1983·Granted Oct 1, 1985·12 cites·8 claims
- 1856US4536205AMethod for controlling currents in glass melterPPG INDUSTRIES INC·Filed 1984·Granted Aug 20, 1985·12 cites·9 claims
- 1953US4551161AOrganic wetting of glass batchPPG INDUSTRIES INC·Filed 1984·Granted Nov 5, 1985·13 cites·20 claims
- 2042US2001025002A1Gray glass compositionFiled 2000·Application pending·0 cites
- 2140US6656862B1Blue privacy glassPPG IND OHIO INC·Filed 1998·Granted Dec 2, 2003·8 cites·50 claims
- 2239US4747883AContinuously flushed thermocouple assemblyPPG INDUSTRIES INC·Filed 1986·Granted May 31, 1988·9 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →