WILHELM SIHN JR FA has a total of 14 patent applications. Its first patent ever was published in 1931. It filed its patents most often in Germany and Switzerland. Its main competitors in its focus markets electrical machinery and energy, telecommunications and mechanical elements are JI HAW OPTO ELECTRICAL KUNSHAN CO LTD, NINGBO BROAD TELECOMMUNICATION CO LTD and VIRGINIA PATENT DEV CORP.
# | Country | Total Patents | |
---|---|---|---|
#1 | Germany | 11 | |
#2 | Switzerland | 3 |
# | Industry | |
---|---|---|
#1 | Electrical machinery and energy | |
#2 | Telecommunications | |
#3 | Mechanical elements |
# | Technology | |
---|---|---|
#1 | Electrically-conductive connections | |
#2 | Cables and insulators | |
#3 | Pipes | |
#4 | Transmission | |
#5 | Spark gaps and corona devices |
# | Name | Total Patents |
---|---|---|
#1 | Sihn Jr Firma Wilhelm | 3 |
Publication | Filing date | Title |
---|---|---|
DE747170C | Means for detachable fixing of insulating rollers | |
DE697666C | Device socket | |
DE663592C | Clamp for electrical lines | |
DE650108C | Insulating roll for fixing ladders | |
DE662074C | Method for producing a spark gap, the electrodes of which are held at a certain distance from one another by an insulating piece | |
DE658910C | Electrical connector pin | |
DE680498C | Banana plugs | |
DE649893C | Longitudinally split plug or longitudinally split socket | |
DE670676C | Lightning protection device | |
DE621986C | Insulating roll for fastening lead wires | |
DE619132C | Split connector |