Patents by Inventor Joseph A. Zeleznik

Joseph A. Zeleznik has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20100215753
    Abstract: A solid dosage form is provided which includes an active agent and silicified microcrystalline cellulose, the dosage form formed by a) combining a wetted active agent with dry silicified microcrystalline cellulose in a dryer to form agglomerated particles; and b) incorporating the agglomerated particles into the solid dosage form. In certain preferred embodiments, step b comprises combining said silicified microcrystalline cellulose, said active agent, and colloidal silicon dioxide in a dryer. Preferably, the dryer is a spray dryer, and, in certain embodiments, the active agent may be an herbal extract.
    Type: Application
    Filed: February 19, 2010
    Publication date: August 26, 2010
    Applicant: J. Rettenmaier & Soehne GMBH+ Co. KG
    Inventors: Bob Sherwood, Joseph A. Zeleznik, David Schaible, Wilhelm Berkulin, Karl-Hans Theissing
  • Publication number: 20070053978
    Abstract: A process for preparing dry extracts from a liquid extract and at least one additional substance by a spray-drying process, characterized in that said at least one additional substance is added to the spray-drying process in a dry form during the spray-drying processes.
    Type: Application
    Filed: November 7, 2006
    Publication date: March 8, 2007
    Inventors: Bob Sherwood, Joseph Zeleznik, David Schaible, Wilheim Barkulin, Karl-Hans Theissing
  • Patent number: 7179488
    Abstract: A process for preparing dry extracts from a liquid extract and at least one additional substance by a spray-drying process, characterized in that said at least one additional substance is added to the spray-drying process in a dry form during the spray-drying processes.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: February 20, 2007
    Inventors: Bob Sherwood, Joseph A. Zeleznik, David Schaible, Wilhelm Berkulin, Karl-Hans Theissing
  • Publication number: 20070011904
    Abstract: A process for preparing agglomerated particles comprising a) providing an active agent in a form suitable for spray drying; and b) combining the active agent with dry silicified microcrystalline cellulose in a dryer to form agglomerated particles.
    Type: Application
    Filed: July 10, 2006
    Publication date: January 18, 2007
    Applicant: J. Rettenmaier & Soehne GmbH + Co. KG
    Inventors: Bob Sherwood, Joseph Zeleznik, David Schaible, Theodore Montalto
  • Publication number: 20050196439
    Abstract: A process for preparing agglomerated particles comprising a) providing an active agent in a form suitable for spray drying; and b) combining the active agent with dry silicified microcrystalline cellulose in a dryer to form agglomerated particles.
    Type: Application
    Filed: October 21, 2004
    Publication date: September 8, 2005
    Applicant: J. Rettenmaier & Soehne GmbH + Co. KG
    Inventors: Bob Sherwood, Joseph Zeleznik, David Schaible, Theodore Montalto
  • Patent number: 6852336
    Abstract: Direct compressed solid pharmaceutical dosage forms containing: a) from about 40 to about 95% by weight acetaminophen; b) from about 1 to about 60% by weight of a direct compression vehicle comprising microcrystalline cellulose; and c) from about 0.01 to about 4.0% by weight of a pharmaceutically-acceptable lubricant are disclosed. The acetaminophen and direct compression vehicle are combined under high shear conditions which are sufficient to transform acetaminophen and direct compression vehicle into a homogenous granulate without degradation. In preferred aspects of the invention, the lubricant is also combined with the acetaminophen and direct compression vehicle under high shear conditions. Methods of preparing the directly compressed solid pharmaceutical dosage forms and methods of treatment with the dosage forms are also disclosed. The methods are particularly well suited for preparing directly compressed dosage forms containing high load (i.e.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: February 8, 2005
    Assignee: J. Rettenmaier & Soehne GmbH + Co. KG
    Inventors: Edward A. Hunter, Bob E. Sherwood, Joseph A. Zeleznik
  • Publication number: 20040115142
    Abstract: A composition has a particulate agglomerate of microcrystalline cellulose co-processed with additive materials, such as silicon dioxide, that are in intimate association with each other, the additive materials being integrated with or at least partially coating the microcrystalline cellulose. The additive materials are present in an amount of about 1% to about 99% by weight, based on the weight of the microcrystalline cellulose. When the material is silicon dioxide, the silicon dioxide is present in an amount of about 21% to about 99% by weight. A method of preparing a composition includes forming an aqueous slurry containing a mixture of microcrystalline cellulose in the form of a wet cake and additive materials; and drying the slurry to obtain a composition comprising a plurality of agglomerated particles of microcrystalline cellulose in intimate association with the additive material. In another embodiment, the composition has a particulate agglomerate of pure additive material, such as silicon dioxide.
    Type: Application
    Filed: September 5, 2003
    Publication date: June 17, 2004
    Applicant: JRS Pharma LP
    Inventors: Bob E. Sherwood, Joseph A. Zeleznik, Michael T. Mallon
  • Publication number: 20030206978
    Abstract: A solid dosage form is provided which includes an active agent and silicified microcrystalline cellulose, the dosage form formed by a) combining a wetted active agent with dry silicified microcrystalline cellulose in a dryer to form agglomerated particles; and b) incorporating the agglomerated particles into the solid dosage form. In certain preferred embodiments, step b comprises combining said silicified microcrystalline cellulose, said active agent, and colloidal silicon dioxide in a dryer. Preferably, the dryer is a spray dryer, and, in certain embodiments, the active agent may be an herbal extract.
    Type: Application
    Filed: September 27, 2002
    Publication date: November 6, 2003
    Inventors: Bob Sherwood, Joseph A. Zeleznik, David Schaible, Wilhelm Berkulin, Karl-Hans Theissing
  • Publication number: 20030203050
    Abstract: A process for preparing dry extracts from a liquid extract and at least one additional substance by a spray-drying process, characterized in that said at least one additional substance is added to the spray-drying process in a dry form during the spray-drying processes.
    Type: Application
    Filed: September 27, 2002
    Publication date: October 30, 2003
    Inventors: Bob Sherwood, Joseph A. Zeleznik, David Schaible, Wilhelm Berkulin, Karl-Hans Theissing
  • Publication number: 20020197310
    Abstract: Direct compressed solid pharmaceutical dosage forms containing:
    Type: Application
    Filed: April 1, 2002
    Publication date: December 26, 2002
    Inventors: Edward A. Hunter, Bob E. Sherwood, Joseph A. Zeleznik
  • Patent number: 6391337
    Abstract: Direct compressed solid pharmaceutical dosage forms containing: a) from about 40 to about 95% by weight acetaminophen; b) from about 1 to about 60% by weight of a direct compression vehicle comprising microcrystalline cellulose; and c) from about 0.01 to about 4.0% by weight of a pharmaceutically-acceptable lubricant are disclosed. The acetaminophen and direct compression vehicle are combined under high shear conditions which are sufficient to transform acetaminophen and direct compression vehicle into a homogenous granulate without degradation. In preferred aspects of the invention, the lubricant is also combined with the acetaminophen and direct compression vehicle under high shear conditions. Methods of preparing the directly compressed solid pharmaceutical dosage forms and methods of treatment with the dosage forms are also disclosed. The methods are particularly well suited for preparing directly compressed dosage forms containing high load (i.e.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: May 21, 2002
    Assignee: Edward Mendell Co., Inc.
    Inventors: Edward A. Hunter, Bob E. Sherwood, Joseph A. Zeleznik
  • Publication number: 20010014353
    Abstract: Direct compressed solid pharmaceutical dosage forms containing:
    Type: Application
    Filed: March 2, 2001
    Publication date: August 16, 2001
    Inventors: Edward A. Hunter, Bob E. Sherwood, Joseph A. Zeleznik
  • Patent number: 6217907
    Abstract: Direct compressed solid pharmaceutical dosage forms containing: a) from about 40 to about 95% by weight acetaminophen; b) from about 1 to about 60% by weight of a direct compression vehicle comprising microcrystalline cellulose; and c) from about 0.01 to about 4.0% by weight of a pharmaceutically-acceptable lubricant are disclosed. The acetaminophen and direct compression vehicle are combined under high shear conditions which are sufficient to transform acetaminophen and direct compression vehicle into a homogenous granulate without degradation. In preferred aspects of the invention, the lubricant is also combined with the acetaminophen and direct compression vehicle under high shear conditions. Methods of preparing the directly compressed solid pharmaceutical dosage forms and methods of treatment with the dosage forms are also disclosed. The methods are particularly well suited for preparing directly compressed dosage forms containing high load (i.e.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: April 17, 2001
    Assignee: Edward Mendell Co., Inc.
    Inventors: Edward A. Hunter, Bob E. Sherwood, Joseph A. Zeleznik
  • Patent number: 5965166
    Abstract: Direct compressed solid pharmaceutical dosage forms containing:a) from about 40 to about 95% by weight acetaminophen;b) from about 1 to about 60% by weight of a direct compression vehicle comprising microcrystalline cellulose; andc) from about 0.01 to about 4.0% by weight of a pharmaceutically-acceptable lubricant are disclosed. The acetaminophen and direct compression vehicle are combined under high shear conditions which are sufficient to transform acetaminophen and direct compression vehicle into a homogenous granulate without degradation. In preferred aspects of the invention, the lubricant is also combined with the acetaminophen and direct compression vehicle under high shear conditions. Methods of preparing the directly compressed solid pharmaceutical dosage forms and methods of treatment with the dosage forms are also disclosed. The methods are particularly well suited for preparing directly compressed dosage forms containing high load (i.e.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: October 12, 1999
    Assignee: Edward Mendell Co., Inc.
    Inventors: Edward A. Hunter, Joseph A. Zeleznik, Bob E. Sherwood
  • Patent number: 5733578
    Abstract: Direct compressed solid pharmaceutical dosage forms containing:a) from about 40 to about 95% by weight acetaminophen;b) from about 1 to about 60% by weight of a direct compression vehicle comprising microcrystalline cellulose; andc) from about 0.01 to about 4.0% by weight of a pharmaceutically-acceptable lubricant are disclosed. The acetaminophen and direct compression vehicle are combined under high shear conditions which are sufficient to transform acetaminophen and direct compression vehicle into a homogenous granulate without degradation. In preferred aspects of the invention, the lubricant is also combined with the acetaminophen and direct compression vehicle under high shear conditions. Methods of preparing the directly compressed solid pharmaceutical dosage forms and methods of treatment with the dosage forms are also disclosed. The methods are particularly well suited for preparing directly compressed dosage forms containing high load (i.e.
    Type: Grant
    Filed: November 15, 1995
    Date of Patent: March 31, 1998
    Assignee: Edward Mendell Co., Inc.
    Inventors: Edward A. Hunter, Bob E. Sherwood, Joseph A. Zeleznik