1
Donald J Douglas, John B French: Mass spectrometer and method and improved ion transmission. MDS Health Group, Rogers Bereskin & Parr, October 16, 1990: US04963736 (110 worldwide citation)

In a mass spectrometer system, ions travel through an orifice in an inlet plate into a first vacuum chamber containing AC-only rods, and then through an orifice into a second vacuum chamber containing a standard quadrupole. The second vacuum chamber is held at low pressure, e.g. 0.02 millitorr or le ...


2
John B French, Oscar E Muttoni: Individualized label application system. Nomax Corporation, Poms Smith Lande & Rose, June 30, 1981: US04276112 (50 worldwide citation)

A system is provided which weighs packages and applies individualized labels to each package indicating the weight of the package, the date, or other desired individualized information. A conveyor includes a weighing section where the weight of the product is converted into digital form and supplied ...


3
John B French: Labelling system and cassette label applicator usable therewith. Compac Corporation, Gordon L Peterson, March 16, 1976: US03944455 (45 worldwide citation)

A labelling system for labelling articles comprising a cassette label applicator having a supply of labels and a conveyor for moving articles past the label applicator where the label applicator applies the label to the articles as they are moved past the label applicator and the conveyor is adapted ...


4
John B French: Table with sensors and smart card holder for automated gaming system and gaming cards. John B French, Stephen J LeBlanc, Quine Intellectual Property Law Group P C, July 17, 2012: US08221244 (40 worldwide citation)

Methods and systems are disclosed for intelligent tracking and/or play and/or management of card gaming use an intelligent card distribution or holding device with detectors for determining the value and unique identity of individual cards and for recording card play. Playing cards are equipped with ...


5
John B French: Composite bridge amplifier. Blade Technologies, Rogers Bereskin & Parr, December 24, 1991: US05075634 (38 worldwide citation)

A composite bridge amplifier having four output metal oxide semi-conductor field effect transistors (mosfets) in a bridge configuration. The gates of the mosfets are controlled by an input signal which is amplified in a diamond differential amplifier phase splitter and voltage gain stage and then ap ...


6
John B French, Neil M Reid, Janette A Buckley: Method and apparatus for analyzing trace components using a gas curtain. The Governing Council of the University of Toronto, Rogers Bereskin & Parr, February 6, 1979: US04137750 (38 worldwide citation)

Apparatus for analyzing trace components contained in a sample gas. The sample gas is directed into a reaction chamber and ionized. The resultant trace ions are drifted by an electric field, out of the sample gas, through an inert gas curtain and then through an orifice into a vacuum chamber where t ...


7
John B French: Tandem mass spectrometer with open structure AC-only rod sections, and method of operating a mass spectrometer system. Rogers Bereskin & Parr, May 4, 1982: US04328420 (34 worldwide citation)

A tandem quadrupole mass spectrometer system in which an AC-only section is close coupled with a standard AC-DC section with the rods of the two sections closely longitudinally adjacent each other. The rods of the AC-only section are of open structure, formed by thin wires, to allow gas to be introd ...


8
John B French, Hubert J Schroeder: Label applicator. Compac Corporation, Gordon L Peterson, October 5, 1976: US03984277 (31 worldwide citation)

A label applicator for applying a label to an article comprising a supporting structure, a manifold defining an air chamber mounted on the supporting structure, and a plurality of conduits communicating with the air chamber. Some of the conduits are blocked off and other of the conduits are capable ...


9
John B French, Donald J Douglas, John E Fulford, Peter Arrowsmith: Mass analyzer system with reduced drift. MDS Health Group, Rogers Bereskin & Parr, May 24, 1988: US04746794 (29 worldwide citation)

A mass analyzer in which an ion signal, typically from a plasma, travels through an orifice into a vacuum chamber, and through a focussing system in the vacuum chamber into a mass spectrometer and ion detector. Drift of the detected ion signal, and differences in drift of the detected ion signal for ...


10
John B French, Bernard Etkin: Apparatus and method for liquid sample introduction. MDS Health Group, Bereskin & Parr, September 6, 1994: US05345079 (28 worldwide citation)

A liquid sample to be analyzed is fed to a micro pump. The pump directs the solution, as a stream of uniformly sized and spaced droplets, into a laminarly flowing stream of hot carrier gas. The carrier gas evaporates the solvents (e.g. water) in the droplets to form a stream of dried particles. The ...



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