DO PATENT POOLS ENCOURAGE INNOVATION? EVIDENCE ...

Technology
High Tension Cables
Water Conditioning
Apparatus
Fuel Injection Equipment
Pharmaceuticals
Railroad Springs
Textile Machines
Hydraulic Oil Pumps
Machine Tools
Phillips Screws
Color Cinematography
Dry Ice
Electric Generators
Lecithin
Variable Condensers
Aircraft Instruments
Stamped Metal Wheels
Wrinkle Paint Finishes
Fuse Cutouts
Ophthalmic Frames
Furniture Slip Covers
TABLE 2 – POOL TECHNOLOGIES AND THEIR USE
Description and use
Fluid-filled cable consisting of a conductor separated and insulated from an outer sheath by oil or gas under mechanical pressure;
used by railroads and public utility companies for transmitting electrical power at high voltages.
Natural and synthetic chemicals and necessary machinery to purify water, to eliminate or counteract certain undesirable chemicals,
substances or characteristics thereof, or otherwise render it suitable for household and industrial uses.
Any and all devices for the feed distribution and injection of fuel in connection with internal combustion engines, including fittings
and accessories for aircraft and other engines.
Chemicals and pharmaceuticals for medicinal household and industrial purposes including synthetic vitamins, narcotics, and
photographic chemicals.
Railroad springs, spring plates, Universal plates, and Coil-Elliptic devices used both in the maintenance and repair of railway cars
and locomotives and in the construction of new railway cars and locomotives.
Multi-section flat bed machines, replacement parts and equipment designed to knit full-fashioned hosiery.
Hydraulic oil pump for pumping oil from wells.
Power-driven machines, not portable by hand, used to cut or shape metal and includes machine tools of the following types: lathes,
drilling machines, boring machines, milling machines, grinding machines, and screw machines.
Processes and equipment used to produce cross-recessed head screws where the slots cross in the head of the screw are rounded and
the bottom of the recess is rounded; used in assembly or production line operations.
Negative film and devices for the purpose of photographing motion picture productions in color.
Solid carbon dioxide used as a refrigerant, to freeze and preserve foods and other products in transportation and storage, in airplane
and bridge construction to shrink metal parts, and in the manufacture of various chemicals.
Electric generators, transformers, motors, and appliances.
Lecithin is a natural organic substance found in many animal and vegetable products such as egg yolks, soy beans, and corn.
Lecithin in used extensively in the food field in lard, oleomargarine, shortening, chocolates, and bakery products, and is also
utilized in such other fields as textiles, paints, wood preservatives, leather dressing, and gasoline.
Variable condensers are tuning devices used in radios to select broadcasting stations.
Various aircraft instruments and parts such as altitude meters, carburetors, devices for removing and preventing the formation of ice
on aircraft, and aero photographic devices.
Metals wheels characterized by having a wheel body formed by a metal stamping, as distinguished from a wheel body formed
entirely from a casting; used in automobiles, buses, trucks.
Enamel, varnish and paint, which has been compounded from materials and methods to produce, when applied and dried, a hard
wrinkled surface on metal or other materials.
Used in preventing short circuits or overloads.
Lenses and frames used in eye glasses and spectacles.
Ready-made slip covers for upholstered chairs and sofas.
Notes: Descriptions from Written Complaints and Final Judgments which are available in regional depositories of the National Archives at Chicago, Kansas City, New York City,
and Riverside. Also see Vaughan (1956).
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