FRANCIS HARRISON has a total of 11 patent applications. Its first patent ever was published in 1906. It filed its patents most often in United Kingdom, France and Australia. Its main competitors in its focus markets electrical machinery and energy and materials and metallurgy are BIRDSEYE ELECTRIC COMPANY, LAMPES ELECT FAB REUNIES and EDISON THOMAS ALVA.
# | Country | Total Patents | |
---|---|---|---|
#1 | United Kingdom | 5 | |
#2 | France | 3 | |
#3 | Australia | 1 | |
#4 | Germany | 1 | |
#5 | United States | 1 |
# | Industry | |
---|---|---|
#1 | Electrical machinery and energy | |
#2 | Materials and metallurgy |
# | Name | Total Patents |
---|---|---|
#1 | Harrison Francis | 3 |
#2 | Francis Harrison | 1 |
#3 | Dorman Christoph Heinrich | 1 |
Publication | Filing date | Title |
---|---|---|
US1353654A | Process of removing film from used metallic-filament electric lamps | |
GB152716A | Improvements in or relating to the repair or renewal of electric incandescence lamps | |
GB152379A | Improvements in or relating to the manufacture of incandescence electric lamps | |
GB152378A | Improvements in or relating to electric incandescence lamps | |
GB152377A | Improvements in or relating to the manufacture of incandescence electric lamps | |
GB152058A | Improvements in or relating to electric incandescence lamps |