NELSON RESEARCH AND DEVELOPMENT COMPANY

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4540691 Dopamine agonists and use thereofExpiredApr 13, 84Sep 10, 85[A61K, C07D]
4525199 Method of improved pest controlExpiredOct 13, 81Jun 25, 85[A01N]
4490389 Contact lens preserving solution containing ascorbic acid or salts thereofExpiredJun 13, 83Dec 25, 84[A61K, C11D]

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