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ESPERANCE FRANCIS A L

Overview
  • Total Patents
    49
About

ESPERANCE FRANCIS A L has a total of 49 patent applications. Its first patent ever was published in 1982. It filed its patents most often in Japan, Canada and EPO (European Patent Office). Its main competitors in its focus markets medical technology, machine tools and engines, pumps and turbines are LASERSIGHT TECH INC, LRI L P and CHIRON TECHNOLAS GMBH.

Patent filings in countries

World map showing ESPERANCE FRANCIS A Ls patent filings in countries

Patent filings per year

Chart showing ESPERANCE FRANCIS A Ls patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 L Esperance Francis A 21
#2 Furanshisu Ei Resuperansu 11
#3 Esperance Francis A L 9
#4 L Esperance Francis A Jr 1

Latest patents

Publication Filing date Title
JPH03140166A Device for intensifying blood vessel hyperplasia and other tissue hyperplasia
CA2000148A1 Method and apparatus for enhanced vascular or other growth
EP0421030A1 Apparatus for enhanced vascular or other growth
EP0372127A1 Beam exposure determining method and apparatus
JPS62101247A Ophthalmic surgical treatment method and apparatus
IL80124D0 Apparatus for ophthalmological surgery
JPS6311130A Apparatus and method for visually displaying cross-sectionalstate of cornea
ES8801576A1 Analysis and correction appts. for abnormal refractive error eye
ES8800834A3 Ablation apparatus for operating on the surface of the cornea of a patient's eye, and method for using it
ZA8604337B Method and apparatus for analysis and correction of abnormal refractive errors of the eye
ZA8604253B Apparatus for ophthalmological surgery
CA1254658A Method and apparatus for analysis and correction of abnormal refractive errors of the eye
CA1245297A Method and apparatus for removing cataractous lens tissue by laser radiation
CA1245726A Laser incisional device
CA1243732A Method and apparatus for ophthalmological surgery
US4580559A Indirect ophthalmoscopic photocoagulation delivery system for retinal surgery
US4435856A Bifocal intraocular lens structure and spectacle actuation frame