General Electric Company

Sanofi-aventis

Sándor Viktor Szabó

István Maros

Zsolt Dombrády

Zsolt Párkányi

Attila Supic

Ferenc Kovács

Mátyás Aradi

Antal Gajáry

József Ugrics

Andrea Major

Erika Máténé Török

Ferenc Bakos

László Schultz

Erzsébet Szalay

István Gyöngyösi

József Zsiga

Power line communication (PLC) systems are presented for connecting dimming switches with electronic ballasts for driving compact fluorescent lamps and other applications using a power distribution network, including a transmitter and a receiver connected in a series circuit for transmission of multi-bit data, where the receiver has a load control circuit for selectively adjusting the receiver loading and to sense current interruptions to provide a data output.

Apparatus for controlling integrated lighting ballasts in a series scheme

The process according to the invention relates to the preparation of 2-chloromethyl-thiophene of the formula (I). During this process thiophene is chloromethylated in the presence of one or more compounds containing keto group and optionally it is transformed into the compound of the formula (II). Compounds of formula (I) and (II) are intermediates of several pharmaceutically active ingredients.

Chloromethylation of thiophene

Growing community of inventors

Budapest, Hungary

Sándor Viktor Szabó