1
Sally A Swedberg, Patrick Kaltenbach, Klaus E Witt, Fritz Bek, Laurie S Mittelstadt: Fully integrated miniaturized planar liquid sample handling and analysis device. Hewlett Packard Company, November 5, 1996: US05571410 (387 worldwide citation)

A miniaturized total analysis system (".mu.-TAS") comprising a miniaturized planar column device is described for use in liquid phase analysis. The .mu.-TAS comprises microstructures fabricated by laser ablation in a variety of novel support substrates. The .mu.-TAS includes associated laser-ablated ...


2
Patrick Kaltenbach, Sally A Swedberg, Klaus E Witt, Fritz Bek, Laurie S Mittelstadt: Use of temperature control devices in miniaturized planar column devices and miniaturized total analysis systems. Hewlett Packard Company, June 24, 1997: US05641400 (155 worldwide citation)

Miniaturized planar column devices and miniaturized total analysis systems for liquid phase analysis are disclosed. The systems include a temperature control device for regulating temperature, preferably a thermoelectric device comprising Peltier elements.


3
Patrick Kaltenbach, Sally A Swedberg, Klaus E Witt, Fritz Bek, Laurie S Mittelstadt: Miniaturized planar columns in novel support media for liquid phase analysis. Hewlett Packard Company, August 19, 1997: US05658413 (69 worldwide citation)

Miniaturized planar column devices are described for use in liquid phase analysis, the devices comprising microstructures fabricated by laser ablation in a variety of novel support substrates. Devices formed according to the invention include associated laser-ablated features required for function, ...


4
Patrick Kaltenbach, Sally A Swedberg, Klaus E Witt, Fritz Bek, Laurie S Mittelstadt: Miniaturized planar columns for use in a liquid phase separation apparatus. Agilent Technologies, March 7, 2000: US06033628 (66 worldwide citation)

In a method of forming a microchannel and/or microcavity structure by bonding together two elements (1, 2) having opposed plane surfaces of the same or different material, one or both surfaces having open channels and/or cavities, bonding is effected by applying to one or both element surfaces (1, 2 ...


5
Klaus E Witt, Patrick Kaltenbach, Fritz Bek, Sally A Swedberg, Laurie S Mittelstadt: Low voltage miniaturized column analytical apparatus and method. Hewlett Packard Company, July 8, 1997: US05645702 (57 worldwide citation)

A miniaturized column analytical apparatus having a miniaturized column device containing a body with an elongate separation compartment is provided. Two or more sets of spaced apart antennas are positioned along the elongate separation compartment. The elongate separation compartment has first and ...


6
Patrick Kaltenbach, Sally A Swedberg, Klaus E Witt, Fritz Bek, Laurie S Mittelstadt: Miniaturized planar columns for use in a liquid phase separation apparatus. Agilent Technologies, July 24, 2001: US06264892 (36 worldwide citation)

Miniaturized planar column devices for use in a liquid phase separation apparatus are described. The devices include microstructures that have been fabricated by laser ablation in a variety of novel support substrates. Devices formed according to the methods of the invention include associated laser ...


7
Fritz Bek: Mixing liquids using electroosmotic flow. Hewlett Packard Company, Augustus W Winfield, July 28, 1998: US05785831 (25 worldwide citation)

A method and apparatus for mixing liquids using electroosmotic flow. Multiple capillaries (100, 104, 106) or microchip channels meet at a common junction (102). One capillary (100) is used for mixed liquids and each of the remaining capillaries (104, 106) are used for supplying a liquid (112, 114) t ...


8
Patrick Kaltenbach, Sally A Swedberg, Klaus E Witt, Fritz Bek, Laurie S Mittelstadt: Method for making miniaturized planar columns in novel support media for liquid phase analysis. Hewlett Packard Company, March 16, 1999: US05882571 (19 worldwide citation)

Miniaturized planar column devices are described for use in liquid phase analysis, the devices comprising microstructures fabricated by laser ablation in a variety of novel support substrates. Devices formed according to the invention include associated laser-ablated features required for function, ...


9
Patrick Kaltenbach, Sally A Swedberg, Klaus E Witt, Fritz Bek, Laurie S Mittelstadt: Method for making miniaturized planar columns in novel support media for liquid phase analysis. Hewlett Packard Company, September 8, 1998: US05804022 (17 worldwide citation)

Miniaturized planar column devices are described for use in liquid phase analysis, the devices comprising microstructures fabricated by laser ablation in a variety of novel support substrates. Devices formed according to the invention include associated laser-ablated features required for function, ...


10
Volker Brombacher, Fritz Bek: Method and apparatus for measuring a low power signal. Agilent Technologies, December 9, 2003: US06660991 (4 worldwide citation)

Low intensity light is incident upon a photodiode whose output is coupled to an integrator. The output of the integrator is coupled to an input of an A/D converter, whose output is coupled to a microprocessor, whose output is coupled to a filter. A second output of the microprocessor is coupled to a ...