1
Gautam R Ranade: Generic zero order controlled drug delivery system. Pfizer, Peter C Richardson, J Trevor Lumb, James M McManus, December 20, 1988: US04792448 (40 worldwide citation)

A device for zero order releasing of biologically active substances into a fluid medium comprising a cylindrical tablet or bolus covered with an impermeable wall or coating from which strips of said wall or coating have been removed.


2
Ranade Gautam Ramchandra: A generic zero order controlled drug delivery system.. Pfizer, December 14, 1988: EP0294993-A1 (19 worldwide citation)

A device for zero order releasing of biologically active substances into a fluid medium comprising a cylindrical tablet or bolus covered with an impermeable wall or coating from which strips of said wall or coating have been removed.


3
Ranade Gautam Ramchandra: Systeme generique de liberation soutenue de drogues controlees, Generic zero order controlled drug delivery system. Pfizer, SMART & BIGGAR, February 8, 1994: CA1326821

A GENERIC ZERO ORDER CONTROLLED DRUG DELIVERY SYSTEM ABSTRACTA device for zero order releasing of biologicallyactive substances into a fluid medium comprising acylindrical tablet or bolus covered with an impermeablewall or coating from which strips of said wall orcoating have been removed.


4
Gautam Ramchandra Ranade: Generic zero order controlled drug delivery system. Pfizer, MA CHONGDE, January 18, 1989: CN88103474

A device for zero order releasing of biologically active substances into a fluid medium comprising a cylindrical tablet or bolus covered with an impermeable wall or coating from which strips of said wall or coating have been removed.