Waterloo
Canada
3
2023-02-23
The entities that hold a legal rights for patent applications filed by inventor Simpson Trefford L.:
Trefford L. Simpson from Waterloo, CA has applied for patents for these inventions. The list has both pending applications and granted patents:
PNEUMATIC ESTHESIOMETER WITH GAS PULSE-CONDITIONER
#2 | 2022-07-14METHOD FOR ASSESSING THE EFFICACY OF TREATMENTS FOR DRY EYE
#3 | 2019-01-03Identification of contact lens wearers predisposed to contact lens discomfort
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