Portfolio comparison
PPG Industries vs Vocollect
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
Company B
Vocollect
Patents indexed
1
Year range
2013
Most recent
2013
telecommunicationssoftwareconsumer_electronicsai_ml
Top Patents1 enriched
US 8612235· 2013
How Speech Recognizers Use Expected Answers to Speed Up
Activity by Decade
2010s1
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