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USPTO Patent Rankings Data through Dec 31, 2025
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Douglas Malcolm Wiggin — 2 Patents in 2018

SMSwitch Materials: 2 patents #5 of 22Top 25%
Burnaby, CA: #19 of 155 inventorsTop 15%
Overall (2018): #152,806 of 503,207Top 35%
2 Patents 2018

Issued Patents 2018

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9921421 Optical filter comprising a variable transmittance layer Neil Robin Branda, Zachary B. Erno, Jeremy Graham Finden, Duhane Lam, Charles Joseph Gongming Loo +3 more 2018-03-20
9910301 Switchable optical filter apparatus with light Neil Robin Branda, Jeremy Graham Finden, Duhane Lam, Jonathan Ross Sargent, Cynthia Elizabeth Shippam 2018-03-06