Portfolio comparison
Weatherford Technology Holdings LLC vs Tokyo Shibaura Electric Co Ltd
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
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
Company B
Tokyo Shibaura Electric Co Ltd
Patents indexed
1
Year range
1985
Most recent
1985
semiconductorsconsumer_electronics
Top Patents1 enriched
US 4531203· 1985
How Flash Memory Cells Use an Erase Gate to Clear Data
Activity by Decade
1980s1
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