Portfolio comparison
Expandable Grafts Partnership vs William F. Semple
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Expandable Grafts Partnership
Patents indexed
1
Year range
1988
Most recent
1988
medical_devicescardiovascularbiotech
Top Patents1 enriched
US 4733665· 1988
How Doctors Implant a Permanent Stent Using a Balloon
Activity by Decade
1980s1
Top Patents1 enriched
US 98304· 1869
William Semple's 1869 Patent for Improved Chewing Gum
Activity by Decade
1860s1
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