1
Gerald J Dolan, Leon W M M Terstappen: Magnetic separation apparatus and methods employing an internal magnetic capture gradient and an external transport force. Immunivest Corporation, Dann Dorfman Herrell and Skillman, November 16, 1999: US05985153 (79 worldwide citation)

The present invention relates to apparatus and methods for separating, immobilizing, and quantifying biological substances from within a fluid medium. Biological substances are observed by employing a high internal gradient magnetic capture structure formed within a vessel, in conjunction with an ex ...


2
Gerald J Dolan, Leon W M M Terstappen: Magnetic devices and sample chambers for examination and manipulation of cells. Immunivest Corporation, John B Dann Dorfman Herrell & Skillman Berryhill, October 24, 2000: US06136182 (58 worldwide citation)

An apparatus for observation of magnetically labeled cells comprises an arrangement of magnets that are configured in confrontation across a horizontal gap. The magnets are further configured to produce a substantially uniform vertically-directed gradient in the gap. A sample vessel containing a flu ...


3
Leon M M Terstappen, Gerald V Doyle, Paul A Liberti, Gerald J Dolan: Apparatus and methods for magnetic separation. Immunivest Corporation, Henry H Skillman, Dann Dorfman Herrell and Skillman, March 26, 2002: US06361749 (39 worldwide citation)

Separation apparatus and method for separating magnetic and/or magnetically-labeled particles from a test medium in a reaction chamber which incorporates baffles, a spinner, a stirrer, or a plunger operable to be displaced along a collection surface to define a narrow flow path through which the par ...


4
Leon W M M Terstappen, Gerald V Doyle, Paul A Liberti, Gerald J Dolan: Apparatus and methods for magnetic separation. ImmuniVest Corporation, Joseph F Aceto, James L Wilcox, June 6, 2006: US07056657 (28 worldwide citation)

Separation apparatus and method for separating magnetic and/or magnetically-labeled particles from a test medium. Test medium within a reaction chamber is caused to flow past a collecting surface, and a high-gradient magnetic field is applied to the surface to capture magnetically responsive particl ...


5
Gerald J Dolan, Ralph A Logan, Henryk Temkin, Daniel P Wilt: Method of making a nonplanar buried-heterostructure distributed-feedback laser. American Telephone and Telegraph Company AT&T Bell Laboratories, Peter A Businger, October 27, 1987: US04701995 (7 worldwide citation)

A buried-heterostructure distributed feedback laser is described, including a grating structure at a surface of a nonplanar cladding layer. The grating structure can be made by transfer of a pattern by ion milling, the pattern being defined in an ion-beam resist layer, e.g., by direct-writing electr ...


6
Leon WMM Terstappen, Gerald V Doyle, Paul A Liberti, Gerald J Dolan: Apparatus and methods for magnetic separation. Dann Dorfman Herrell & Skillman, October 3, 2002: US20020141913-A1

Separation apparatus and method for separating magnetic and/or magnetically-labeled particles from a test medium. Test medium within a reaction chamber is caused to flow past a collecting surface, and a high-gradient magnetic field is applied to the surface to capture magnetically responsive particl ...