Assignee: Patentex S.A.

Location: Fribourg, CH
No. of patents: 4

Number	Title	Issue Date
4439471	Tennis ball with fabric covering A tennis ball conforming to the 1968 regulation of the International Federation of Lawn Tennis comprises a hollow elastic core and an improved cover bonded to the core by an adhesive mixture. The cover has a specific weight less than 0.22 g/cm3...	03/27/1984
4279418	Rackets for tennis and other games A racket for tennis and other similar games, comprising a sensibly oval or pear-shaped stringing surface and an auxiliary element for maintaining the strings in a median plane at determined places, in which at least some strings are wound simultaneously a...	07/21/1981
4022469	Tennis ball The invention provides tennis balls which comply in their behavior with the requirements of the "Rules of the International Lawn Federation" and which consist wholly or partially of a rubber based on natural and/or synthetic rubber which contains 15 to 50...	05/10/1977
3941380	Tennis rackets and similar implements with vibration damper A damping mechanism for implements such as tennis rackets, baseball bats and the like, comprising an elongated vibratable member formed of an elastomeric, energy-absorbing material. One of the ends of the vibratable member is attached rigidly to the imple...	03/02/1976

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