Inventor

HOFFMANN ROLAND

DE8 patents

⚠️ This page may combine multiple inventors who share the name “HOFFMANN ROLAND”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH

3 patents

US4344016AAug 10, 1982

Fluorescent lamp with silicon dioxide coating

PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH18 citations71

US5614784AMar 25, 1997

Discharge lamp, particularly cold-start fluorescent lamp, and method of its manufacture

PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH7 citations67

US7408295B2Aug 5, 2008

Mercury amalgams for elevated temperatures in discharge lamps

PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH3 citations56

HOFFMANN ROLAND

1 patent

US10619376B2Apr 14, 2020

Device for attaching flexible fabrics for indoor and outdoor use in architecture

HOFFMANN ROLAND7 citations76

ABB TECHNOLOGY AG

1 patent

US6663039B2Dec 16, 2003

Process for manufacturing an electrical-power transformer having phase windings formed from insulated conductive cabling

ABB TECHNOLOGY AG8 citations72

OSRAM SYLVANIA INC

1 patent

US5729081AMar 17, 1998

Electrode coil for discharge lamps and method for producing such an electrode coil

OSRAM SYLVANIA INC8 citations71

OSRAM GMBH

1 patent

US7948182B2May 24, 2011

Low-pressure gas discharge lamp with a reduced argon proportion in the gas filling

OSRAM GMBH0 citations46

ABB T & D TECH LTD

1 patent

US6778060B2Aug 17, 2004

Winding for a transformer or a coil and method for producing the winding

ABB T & D TECH LTD0 citations33