Burnaby
Canada
9
2023-03-30
The entities that hold a legal rights for patent applications filed by inventor Wiggin Douglas Malcolm:
Douglas Malcolm Wiggin from Burnaby, CA has applied for patents for these inventions. The list has both pending applications and granted patents:
Optical filter with light source
#2 | 2021-03-25Optical filter with light source
#3 | 2019-11-14Optical filter with light source
#4 | 2019-11-14Optical filter comprising a variable transmittance layer
#5 | 2018-08-09Optical filter comprising a variable transmittance layer
#6 | 2018-07-26Optical filter with light source
#7 | 2017-07-06Optical filter comprising a variable transmittance layer
#8 | 2015-04-23Optical filter comprising a variable transmittance layer
#9 | 2015-02-05Switchable optical filter apparatus with light
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