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USPTO Patent Rankings Data through Dec 31, 2025
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Gregory J. MacMichael — 2 Patents

TETechne: 2 patents #2 of 7Top 30%
Levittown, PA: #184 of 461 inventorsTop 40%
Pennsylvania: #30,766 of 74,527 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Gregory J. MacMichael has been granted 2 US patents while listed as an inventor at Techne. All of these patents were granted in 1988. Gregory J. MacMichael ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Gregory J. MacMichael in Levittown, PA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4759635 Magnetic stirrer apparatus with improved stirring action Norman A. de Bruyne 1988-07-26
4760028 Bioreactor apparatus with surface aerator screen Norman A. deBruyne, Gregg S. Feldscher 1988-07-26