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William Ferrell McCollough

POPolytech: 1 patents #3 of 3Top 100%
Laurel, MD: #309 of 605 inventorsTop 55%
Maryland: #19,431 of 35,612 inventorsTop 55%
Overall (All Time): #3,611,052 of 4,157,543Top 90%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6044600 Retrofit threshold — 2000-04-04

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