Ken Tseung, Wai Bun Wong, Glenn K Takayama, Christopher M Jones, Krishan L Kalra: Automated staining apparatus. BioGenex Laboratories, Richard Neeley, Luann Cserr, August 8, 1995: US05439649 (219 worldwide citation)

An automated microscope-slide-staining apparatus, having a supporting framework; an arm moveable in three dimensions attached to the framework; apparatus for moving the arm; a hollow tip head located on the arm; apparatus for alternatively supplying positive or negative gas pressure to the hollow ti ...

Krishan L Kalra, Jason Z Zhang, Zhi Weng Chang, Jianghong Shui: Automated staining apparatus. BioGenex Laboratories, James C The Law Offices of James C Weseman Weseman Esq, September 7, 1999: US05948359 (156 worldwide citation)

Disclosed is an automated staining apparatus including an arm moveable in three dimensions, and a hollow tip head located on the arm including integral reagent tip head, wash tip and blow tip for selectively dispensing gas and liquid onto microscope slides. Also disclosed are various sub-components ...


Guangrong Zhan, Krishan L Kalra, Sheng Hui Su, Taiying Chen: Releasing embedding media from tissue specimens. BioGenex Laboratories, James C Weseman Esq, The Law Offices of James C Weseman, September 17, 2002: US06451551 (113 worldwide citation)

Releasing the embedding medium from an embedded histochemically reactive tissue specimen is provided by contacting the embedded tissue specimen with a releasing composition under conditions sufficient to release a sufficient portion of the embedding medium associated with the histochemically reactiv ...

Guangrong Zhang, Cheng Zhi Yu, Sheng Hui Su, Krishan L Kalra, Ding Zhou: Deparaffinization compositions and methods for their use. BioGenex Laboratories, James C Weseman Esq, Law Offices of James C Weseman, October 14, 2003: US06632598 (109 worldwide citation)

Compositions and methods are provided for dewaxing wax-embedded biological specimens prior to histochemical analysis. The compositions and methods provided can effectively remove wax or improved wax-based embedding materials, particularly paraffin-based, from specimens during preparation for histoch ...

Shan Rong Shi, Atul K Tandon, Krishan L Kalra, Nagesh Malhotra, Sheng Hui Su, Cheng Zhi Yu: Enhancement of immunochemical staining in aldehyde-fixed tissues. Biogenex Laboratories, Gray Cary Ware & Freidenrich, November 26, 1996: US05578452 (92 worldwide citation)

A method for restoring immunoreactivity of a tissue, particularly decalcified tissue, fixed width an aldehyde fixative agent and embedded in an embedding medium, usually comprising celloidin, the method comprising the steps of contacting the tissue with an aldehyde releasing reagent solution compris ...

Marc E Key, Shan Rong Shi, Krishan L Kalra: Antigen retrieval in formalin-fixed tissues using microwave energy. Biogenex Laboratories, Cooley Godward Castro Huddleson & Tatum, September 14, 1993: US05244787 (89 worldwide citation)

A method of immunologically staining a formalin-fixed tissue preparation, which comprises (a) subjecting a formalin-fixed tissue preparation to microwave energy while the tissue preparation is submersed in water for a time sufficient to increase immunostaining efficiency; (b) removing the tissue pre ...

Krishan L Kalra, Katarzyna Pawlak, Patricia A Moon, Larry D French: Immunoassay test device and method. BioGenex Laboratories, Richard L Neeley, March 27, 1990: US04912034 (84 worldwide citation)

An apparatus is provided for use in an immunoassay for the detection of a target analyte in a liquid sample, comprising a porous reactive filter, having an upper surface and a lower surface, to which is bound an antibody specific for the target antigen; a holder affixed to the porous filter, wherein ...

Zahra P Naser Kolahzadeh, Joannis G Stavrianopoulos: Mounting medium for microscope slide preparations. Biogenex Laboratories, James C Gray Cary Ware & Freidenrich Weseman, February 20, 1996: US05492837 (37 worldwide citation)

Aqueous polyvinylpyrrolidone (PVP) compositions and processes employing aqueous PVP, for use in mounting hematological, cytological and histological specimens on microscope slides.

Rajkumar Siva Iyer, Sheng Hui Su, Anita Inamdar, Krishan L Kalra: Multifunctional linking reagents for synthesis of branched oligomers. BioGenex Laboratories, James C The Law Offices of James C Weseman Weseman Esq, June 29, 1999: US05916750 (34 worldwide citation)

Reagents capable of forming branched oligomers with monomeric units are disclosed, together with oligomers incorporating such reagents, kits containing such reagents and methods for use of such reagents in forming oligomers with monomeric units. The present reagents can advantageously be used to int ...