Portfolio comparison
Josephine G. Cochrane vs Weatherford Technology Holdings LLC
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Josephine G. Cochrane
Patents indexed
1
Year range
1886
Most recent
1886
mechanicalconsumer_electronics
Top Patents1 enriched
US 355139· 1886
Josephine Cochrane's Mechanical Dishwashing Machine
Activity by Decade
1880s1
Company B
Weatherford Technology Holdings LLC
Patents indexed
1
Year range
2025
Most recent
2025
energymechanicaltelecommunications
Top Patents1 enriched
US 12497890· 2025
How Oil Wells Send Acoustic Signals Using Mechanical Hammers
Activity by Decade
2020s1
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