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GRENDAHL DENNIS T

Overview
  • Total Patents
    24
About

GRENDAHL DENNIS T has a total of 24 patent applications. Its first patent ever was published in 1982. It filed its patents most often in United States, WIPO (World Intellectual Property Organization) and Canada. Its main competitors in its focus markets medical technology, machines and optics are ENDOMED INC, AMOENA MED ORTHOPAEDIE TECH and LAGHI ALDO A.

Patent filings per year

Chart showing GRENDAHL DENNIS Ts patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Grendahl Dennis T 21
#2 Harnsberger Fritz D 2
#3 Lemaster William 1
#4 Tiffany John 1
#5 Milligan Russ 1
#6 Tiffany John S 1
#7 Foehl David R 1

Latest patents

Publication Filing date Title
EP0702625A1 Member with holes and process of making same
US5509903A Syringe having a flexible collar
WO9214421A1 Halo-reducing ophthalmic lens for small incision implant surgery
US5213721A Process of making a member with holes
US4906246A Cylindrically segmented zone of focus artificial hydrogel lens
US4919663A Laminated zone of focus artificial hydrogel lens
US4906245A Multiple element zone of focus artificial hydrogel lens
US4921496A Radially segemented zone of focus artificial hydrogel lens
GB8802220D0 Intraocular lens having a hard optic and a soft skirt
US4843209A Method and apparatus for laser staking
US4798609A Radially segmented zone of focus artificial lens
US4795462A Cylindrically segmented zone of focus artificial lens
US4778462A Multiple element zone of focus artificial lens
US4798608A Laminated zone of focus artificial lens
US4759762A Accommodating lens
US4781717A Intraocular lens
US4872878A Optical brigthener in an intraocular lens
US4774036A Method of making an intraocular lens
US4872877A Intraocular lens with ultraviolet screening agent
US4764169A Intraocular lens