Tokuyama Soda Kabushiki Kaisha
Patent Owner
Stats
- 8 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- May 07, 1996 most recent publication
Details
- 8 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 1,698 Total Citation Count
- Dec 03, 1976 Earliest Filing
- 80 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
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Recent Publications
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Recent Patents
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5262142 Composite oxide of formula R.sub.2 O.Al.sub.2 O.sub.3.TiO.sub.2.SiO.sub.2.H.sub.2 O, where R is an alkali metalExpiredJul 31, 92Nov 16, 93[C01B]
5240692 Basic magnesium carbonate and process for preparation thereofExpiredAug 17, 92Aug 31, 93[C01F]
5238735 Microporous shaped article and process for preparation thereofExpiredFeb 05, 90Aug 24, 93[C08J, B32B]
5214116 Resin derived from sulfur-containing unsaturated compound and having a high refractive indexExpiredDec 11, 91May 25, 93[C08F]
5138001 Vinylphenyl compound, process for the production thereof, polymerizable composition containing same, and crosslinked polymer formed therefromExpiredAug 27, 90Aug 11, 92[C08F]
5130058 Photochromic compound, process for production thereof, use thereof and composition containing said photochromic compoundExpiredJun 29, 89Jul 14, 92[C07D, G02B, G03C]
5124021 Solid electrolyte gas sensor and method of measuring concentration of gas to be detected in gas mixtureExpiredDec 27, 90Jun 23, 92[G01N]
5063183 Sinterable aluminum nitride composition, sintered body from this composition and process for producing the sintered bodyExpiredAug 14, 90Nov 05, 91[C04B]
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