1
Pfann William Gardner, Wagner Richard Siegried: Improvements in or relating to crystal-growing methods. Western Electric Co, January 27, 1971: GB1220291-A

1,220,291. Crystallizing. WESTERN ELECTRIC CO. Inc. 29 Feb., 1968 [1 March, 1967], No. 9853/68. Heading B1G. A crystalline material is grown from a solvent in a container 28 in a chamber 27 on to a seed 29, further material (which is formed in the chamber as a result of a gas phase reaction or by th ...


2
Jnr John Read Arthur, Morton Jack Andrew, Pfann William Gardner, Wagner Richard Siegfried: Cold cathode field emitter. Western Electric Co, October 6, 1971: GB1248442-A

1,248,442. Image intensifier tubes. WESTERN ELECTRIC CO. Inc. 20 Sept., 1968 [21 Sept., 1967], No. 44815/68. Heading HID. The preparation and use of field emission cold cathodes formed of a mosaic of closely spaced needles perpendicular to and projecting from a substrate, the needles having a minimu ...


3
Ellis William Carlton, Pfann William Gardner, Wagner Richard Siegfried: Processes for the growth of crystalline bodies. Western Electric Co, June 7, 1967: GB1070991-A

A needle- or plate-like crystal of a substance is grown on a substrate from one or more drops of a molten carrier supported on the substrate, further substance being absorbed in the carrier from gas or vapour. The substance may be copper, germanium, silicon, zinc, aluminium oxide, gallium arsenide, ...


4
Pfann William Gardner: Improvements in or relating to zone melting methods and apparatus. Western Electric Co, November 3, 1961: GB1175084-A

1,175,084. Zone-melting. WESTERN ELECTRIC CO., Inc. 12 Jan., 1967 [13 Jan., 1966], No. 1722/67. Heading B1S. A plurality of molten zones is passed through a body of material contained in a horizontal tube 10 rotating about its longitudinal axis. The molten zones are formed by resistance heating elem ...