Portfolio comparison
PPG Industries vs Richard J. Gatling
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
PPG Industries
Patents indexed
1
Year range
1981
Most recent
1981
chemicalenergymanufacturingmaterialsindustrial_process
Top Patents1 enriched
US 4253922· 1981
How a Special Carbon-Fluorine Catalyst Makes Chlorine and Caustic Soda
Activity by Decade
1980s1
Top Patents1 enriched
US 36836· 1862
How the Gatling Gun's Rotating Barrel Mechanism Works
Activity by Decade
1860s1
How to use
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