Portfolio comparison
Halliburton Energy Services Inc vs DUAL PARKING METER Co
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Halliburton Energy Services Inc
Patents indexed
1
Year range
2022
Most recent
2022
oil_and_gasenergymechanicalsoftware
Top Patents1 enriched
US RE49155· 2022
Electric or Natural Gas Blending and Pumping for Oil Wells
Activity by Decade
2020s1
Top Patents1 enriched
US 2118318· 1938
How the First Coin-Operated Parking Meter Works
Activity by Decade
1930s1
How to use
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