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Sergio Belli, Alberto Bareggi, Luigi Caimi, Luca Balconi: Electrical cable having a semiconductive water-blocking expanded layer. Pirelli Cavi e Sistemi S p A, Finnegan Henderson Farabow Garret & Dunner, September 24, 2002: US06455769 (149 worldwide citation)

Electrical cable, in particular for medium- or high-voltage power transmission or distribution, having a metal shield and a semiconductive water-blocking expanded layer. This layer exerts three main functions, the first one is to elastically and uniformly absorb radial forces of expansion and contra ...


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Ernesto Zaccone, Sergio Belli, Giuseppe Casanova, Paolo Marelli: Hybrid electrical-optical cable for overhead installation. Pirelli Cavi E Sistemi S p A, Finnegan Henderson Farabow Garrett & Dunner L, February 22, 2005: US06859590 (142 worldwide citation)

Hybrid electrical-optical cable for overhead installations for power distribution and for telecommunications, comprising three insulated phase conductors helically wound around a supporting rope. Inside the supporting rope there is at least one optical fibre element fitted in a tubular structure whi ...


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Francesco Schiattone: Method for performing fixing inside a container for optical connection components. Pirelli Cavi e Sistemi S p A, Finnegan Henderson Farabow Garrett & Dunner L, July 31, 2001: US06269212 (57 worldwide citation)

Method for performing fixing inside a container for optical connection components, comprising the step of manufacturing a protective packaging from elastomeric material encapsulating at least one optical connection component, inserting said packaging containing said at least one component inside sai ...


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Giuseppe Ravasio, Guido Oliveti, Claudio Zammarchi: Network for distributing signals to a plurality of users. Pirelli Cavi e Sistemi S p A, Finnegan Henderson Farabow Garrett & Dunner L, June 21, 2005: US06909821 (38 worldwide citation)

A network for distributing signals to a plurality of user apparatuses having a distribution unit with a plurality of ports, and a plurality of optical-fiber cables connected to the ports and suitable to make the plurality of ports of the distribution unit communicate with the plurality of user appar ...


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Andrea Melloni, Mario Martinelli: Optical intensity modulation device and method. Pirelli Cavi e Sistemi S p A, Finnegan Henderson Farabow Garrett & Dunner L, June 24, 2003: US06583917 (33 worldwide citation)

An optical intensity modulator for high-speed RZ and NRZ data modulation based on a balanced three-arm Mach-Zehnder interferometer. The three arms are joined at the input and output sides of the device by three-way couplers. The input coupler is structured to couple approximately equal powers into t ...


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Andrew L Maunder, Alberto Bareggi, Luca Balconi, Gaia Dell&apos Anna, Giovanni Pozzati, Sergio Belli: Electrical cable with self-repairing protection and apparatus for manufacturing the same. Pirelli Cavi e Sistemi S p A, Finnegan Henderson Farabow Garrett & Dunner L, March 18, 2003: US06534715 (30 worldwide citation)

An electrical cable includes a conductor, an outer sheath, and a self-repairing material layer between the conductor and outer sheath. The self-repairing material layer is distributed around the conductor in a discontinuous manner. An anchor portion is formed between the conductor and the outer shea ...


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Luca Castellani, Eduardo Grizante Redondo, Antonio Zaopo, Enrico Albizzati: Cables with a halogen-free recyclable coating comprising polypropylene and an ethylene copolymer having high elastic recovery. Pirelli Cavi e Sistemi S p A, Finnegan Henderson Farabow Garrett & Dunner L, April 16, 2002: US06372344 (26 worldwide citation)

A cable, in particular for power transmission, for telecommunications or for data transmission, or also combined power/telecommunications cables, wherein at least one coating layer is comprised of a recyclable material which is halogen-free and has superior mechanical and electrical properties. This ...


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Giovanni Brandi, Massimo Pizzorno: Optical cable with core decoupled from sheath and yarn strands uniformly adhering to sheath. Pirelli Cavi E Sistemi S p A, Finnegan Henderson Farabow Garrett & Dunner L, November 2, 1999: US05978536 (26 worldwide citation)

An optical fiber cable including at least one module with at least two optical fibers enveloped by a plastic covering, a plastic sheath around the module, and tensile-resistant fibrous yarn strands arranged between the module and the plastic sheath. The sheath and the module are decoupled during man ...


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Richard Ian Laming, Laurence Reekie, Liang Dong, Jose Luis Cruz: Chirped optical fibre grating. Pirelli Cavi e Sistemi S p A, Finnegan Henderson Farabow Garrett & Dunner L, January 2, 2001: US06169829 (22 worldwide citation)

The invention provides a method of manufacturing a chirped optical fiber grating, the method comprising the steps of an etching the cladding of the optical fiber to vary the cross-sectional area of a portion of an optical fiber, and impressing a grating of uniform pitch on the portion of the fiber i ...