Patents by Inventor E. Guan
E. Guan 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).
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Patent number: 10183118Abstract: A stopper adapted for attachment with a plunger rod for use within a syringe barrel is disclosed. The stopper includes a main body defining an open rearward end and a closed front end. The open rearward end is adapted to receive a front forward end attachment portion of the plunger rod. The stopper also includes a core member integrally formed with the main body adjacent the closed front end. The core member includes a nose portion having a conical tip configured for entering an outlet opening of the syringe barrel. The closed front end of the stopper has a profile configured to cooperate with an internal surface of the syringe barrel wall to prevent reflux and reduce dead space within the barrel.Type: GrantFiled: January 27, 2017Date of Patent: January 22, 2019Assignee: Becton, Dickinson and CompanyInventors: Michael Vincent Quinn, Eric Schiller, Gang Ju, E Guan
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Publication number: 20170136187Abstract: A stopper adapted for attachment with a plunger rod for use within a syringe barrel is disclosed. The stopper includes a main body defining an open rearward end and a closed front end. The open rearward end is adapted to receive a front forward end attachment portion of the plunger rod. The stopper also includes a core member integrally formed with the main body adjacent the closed front end. The core member includes a nose portion having a conical tip configured for entering an outlet opening of the syringe barrel. The closed front end of the stopper has a profile configured to cooperate with an internal surface of the syringe barrel wall to prevent reflux and reduce dead space within the barrel.Type: ApplicationFiled: January 27, 2017Publication date: May 18, 2017Inventors: Michael Vincent Quinn, Eric Schiller, Gang Ju, E Guan
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Patent number: 9649444Abstract: A stopper adapted for attachment with a plunger rod for use within a syringe barrel is disclosed. The stopper includes a main body defining an open rearward end and a closed front end. The open rearward end is adapted to receive a front forward end attachment portion of the plunger rod. The stopper also includes a core member integrally formed with said main body adjacent the closed front end. The core member includes a nose portion having a profile adapted to create a positive seal with an outlet opening of such syringe barrel.Type: GrantFiled: May 8, 2013Date of Patent: May 16, 2017Assignee: Becton, Dickinson and CompanyInventors: Eric Schiller, Michael Vincent Quinn, Johanna Torres, E Guan, Anthony Economou, Gang Ju
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Patent number: 9592346Abstract: A stopper adapted for attachment with a plunger rod for use within a syringe barrel is disclosed. The stopper includes a main body defining an open rearward end and a closed front end. The open rearward end is adapted to receive a front forward end attachment portion of the plunger rod. The stopper also includes a core member integrally formed with the main body adjacent the closed front end. The core member includes a nose portion having a conical tip configured for entering an outlet opening of the syringe barrel. The closed front end of the stopper has a profile configured to cooperate with an internal surface of the syringe barrel wall to prevent reflux and reduce dead space within the barrel.Type: GrantFiled: March 25, 2014Date of Patent: March 14, 2017Assignee: Becton, Dickinson and CompanyInventors: Michael Vincent Quinn, Eric Schiller, Gang Ju, E Guan
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Publication number: 20140207081Abstract: A stopper adapted for attachment with a plunger rod for use within a syringe barrel is disclosed. The stopper includes a main body defining an open rearward end and a closed front end. The open rearward end is adapted to receive a front forward end attachment portion of the plunger rod. The stopper also includes a core member integrally formed with the main body adjacent the closed front end. The core member includes a nose portion having a conical tip configured for entering an outlet opening of the syringe barrel. The closed front end of the stopper has a profile configured to cooperate with an internal surface of the syringe barrel wall to prevent reflux and reduce dead space within the barrel.Type: ApplicationFiled: March 25, 2014Publication date: July 24, 2014Inventors: Michael Vincent Quinn, Eric Schiller, Gang Ju, E. Guan
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Patent number: 8740856Abstract: A stopper adapted for attachment with a plunger rod for use within a syringe barrel is disclosed. The stopper includes a main body defining an open rearward end and a closed front end. The open rearward end is adapted to receive a front forward end attachment portion of the plunger rod. The stopper also includes a core member integrally formed with the main body adjacent the closed front end. The core member includes a nose portion having a conical tip configured for entering an outlet opening of the syringe barrel. The closed front end of the stopper has a profile configured to cooperate with an internal surface of the syringe barrel wall to prevent reflux and reduce dead space within the barrel.Type: GrantFiled: April 5, 2010Date of Patent: June 3, 2014Assignee: Becton, Dickinson and CompanyInventors: Michael Vincent Quinn, Eric Schiller, Gang Ju, E Guan
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Patent number: 8740854Abstract: A plunger rod adapted for attachment with a stopper for use with a syringe barrel is disclosed. The plunger rod includes an elongated member having a front end and a back end, the plunger rod extending along a longitudinal axis. The plunger rod includes at least one deflecting arm associated with the front end of the elongated member. The deflecting arm is capable of deflecting radially inward during insertion of the plunger rod into a stopper, and deflecting outward into contact with an inner surface of the stopper after insertion to lock the plunger rod within the stopper.Type: GrantFiled: June 4, 2008Date of Patent: June 3, 2014Assignee: Becton, Dickinson and CompanyInventors: Eric Schiller, Michael V. Quinn, Johanna Torres, E Guan, Anthony Economou, Gang Ju
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Publication number: 20130253436Abstract: A stopper adapted for attachment with a plunger rod for use within a syringe barrel is disclosed. The stopper includes a main body defining an open rearward end and a closed front end. The open rearward end is adapted to receive a front forward end attachment portion of the plunger rod. The stopper also includes a core member integrally formed with said main body adjacent the closed front end. The core member includes a nose portion having a profile adapted to create a positive seal with an outlet opening of such syringe barrel.Type: ApplicationFiled: May 8, 2013Publication date: September 26, 2013Inventors: Eric Schiller, Michael Vincent Quinn, Johanna Torres, E Guan, Anthony Economou, Gang Ju
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Patent number: 8475415Abstract: A stopper adapted for attachment with a plunger rod for use within a syringe barrel is disclosed. The stopper includes a main body defining an open rearward end and a closed front end. The open rearward end is adapted to receive a front forward end attachment portion of the plunger rod. The stopper also includes a core member integrally formed with said main body adjacent the closed front end. The core member includes a nose portion having a profile adapted to create a positive seal with an outlet opening of such syringe barrel.Type: GrantFiled: June 4, 2008Date of Patent: July 2, 2013Assignee: Becton, Dickinson and CompanyInventors: Eric Schiller, Michael V. Quinn, Johanna Torres, E Guan, Anthony Economou, Gang Ju
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Publication number: 20110034882Abstract: A stopper adapted for attachment with a plunger rod for use within a syringe barrel is disclosed. The stopper includes a main body defining an open rearward end and a closed front end. The open rearward end is adapted to receive a front forward end attachment portion of the plunger rod. The stopper also includes a core member integrally formed with the main body adjacent the closed front end. The core member includes a nose portion having a conical tip configured for entering an outlet opening of the syringe barrel. The closed front end of the stopper has a profile configured to cooperate with an internal surface of the syringe barrel wall to prevent reflux and reduce dead space within the barrel.Type: ApplicationFiled: April 5, 2010Publication date: February 10, 2011Applicant: BECTON, DICKINSON AND COMPANYInventors: Michael Vincent Quinn, Eric Schiller, Gang Ju, E Guan
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Publication number: 20080300550Abstract: A stopper adapted for attachment with a plunger rod for use within a syringe barrel is disclosed. The stopper includes a main body defining an open rearward end and a closed front end. The open rearward end is adapted to receive a front forward end attachment portion of the plunger rod. The stopper also includes a core member integrally formed with said main body adjacent the closed front end. The core member includes a nose portion having a profile adapted to create a positive seal with an outlet opening of such syringe barrel.Type: ApplicationFiled: June 4, 2008Publication date: December 4, 2008Applicant: BECTON, DICKINSON AND COMPANYInventors: Eric Schiller, Michael V. Quinn, Johanna Torres, E. Guan, Anthony Economou, Gang Ju
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Publication number: 20080300551Abstract: A plunger rod adapted for attachment with a stopper for use with a syringe barrel is disclosed. The plunger rod includes an elongated member having a front end and a back end, the plunger rod extending along a longitudinal axis. The plunger rod includes at least one deflecting arm associated with the front end of the elongated member. The deflecting arm is capable of deflecting radially inward during insertion of the plunger rod into a stopper, and deflecting outward into contact with an inner surface of the stopper after insertion to lock the plunger rod within the stopper.Type: ApplicationFiled: June 4, 2008Publication date: December 4, 2008Applicant: Becton, Dickinson and CompanyInventors: Eric Schiller, Michael V. Quinn, Johanna Torres, E Guan, Anthony Economou, Gang Ju
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Publication number: 20070125390Abstract: The present invention provides non-invasive, in vivo, DISC-type methods of evaluating structural changes in skin due to a variety of exogenous or endogenous factors. It is possible to develop quantitative and qualitative characterizations of skin. For example, the skin may be characterized based on its structural age rather than its chronological age. Based on the structural age and type of an individual's skin, cosmetic, dermatologic, medicinal or manipulative treatment may be customized. The method is based, in part, on quantification of discontinuities that arise in the skin during normal facial expression. The methods provide for evaluating changes in human skin response that occur over a short term (one day) or long term (one or more years). The methods provide for evaluating the skin's response to cosmetic, dermatologic or medicinal treatment or to any other factor alleged to affect the skin.Type: ApplicationFiled: December 7, 2005Publication date: June 7, 2007Inventors: Isabelle Afriat, Miriam Rafailovich, E. Guan