WJ ACQUISITION CORP.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G02C SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES 445
 
  
 
B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE 255
 
  
 
C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 2123
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS198
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1205

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6494575 Colored contact lens having very natural appearanceApr 11, 95Dec 17, 02[G02C]
5633504 Inspection of optical componentsMar 30, 95May 27, 97[G01N]
5559848 Imaging system for plastic componentsAug 16, 94Sep 24, 96[G01B]
5414477 Colored contact lens having very natural appearanceDec 03, 92May 09, 95[G02C]
5316700 Method and apparatus for removing excess lens forming materialNov 02, 92May 31, 94[B29D]
5271874 Method for molding a hydrophilic contact lensNov 04, 92Dec 21, 93[B29D]
5272010 Color binding mechanism for contact lensesOct 01, 91Dec 21, 93[B32B]
RE33477 Ultraviolet absorbing hydrophilic corneal contact lensesJun 20, 89Dec 04, 90[C02C, C08F]
RE31422 Hydrophilic polymers and contact lenses of high water contentDec 09, 81Oct 18, 83[C08F, G02C]
RE30368 Gas-permeable lensMar 05, 79Aug 12, 80[G02C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
D352237 Blister packageExpiredJun 08, 93Nov 08, 94[]
D351343 Blister packageExpiredJun 08, 93Oct 11, 94[]
5062701 Asymmetric contact lensExpiredNov 16, 90Nov 05, 91[A61B, G02C]
5020898 Contact lens for correction of astigmatismExpiredJan 29, 90Jun 04, 91[G02C]
4976533 Method for measuring the rotation of an assymetric contact lens and lenses for practicing the methodExpiredJun 07, 88Dec 11, 90[A61B, G02C]
4963159 Hydrophilic colored contact lensExpiredJul 11, 89Oct 16, 90[D06P]
4857072 Hydrophilic colored contact lensesExpiredNov 24, 87Aug 15, 89[D06P]
4720188 Process for manufacturing colored contact lenses and lenses made by the processExpiredJun 25, 87Jan 19, 88[D06P, G02C]
4704017 Process for manufacturing colored contact lensesExpiredSep 23, 85Nov 03, 87[D06P, G02C]
4668240 Pigment colored contact lenses and method for making sameExpiredDec 16, 85May 26, 87[D06P]
4582402 Color-imparting contact lensesExpiredApr 16, 84Apr 15, 86[G02C]
4549794 Hydrophilic bifocal contact lensExpiredMay 05, 83Oct 29, 85[G02C]
4405773 Hydrophylic contact lenses and methods for making sameExpiredFeb 05, 82Sep 20, 83[C08F]
4312725 Contact lenses of high gas permeability and methodExpiredJan 31, 80Jan 26, 82[C08F, G02C]
4228269 Contact lenses of high gas permeabilityExpiredJun 08, 78Oct 14, 80[C08F]

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