SONNENFELD HUGO has a total of 27 patent applications. Its first patent ever was published in 1917. It filed its patents most often in Switzerland, Canada and Spain. Its main competitors in its focus markets electrical machinery and energy and mechanical elements are KRONE DIGITAL COMMUNICATIONS I, ZHEJIANG ZHAOLONG CABLE CO LTD and CHENGDU DATANG COMMUNICATION CABLE CO LTD.
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Cables and insulators | |
| #2 | Pipes | |
| #3 | Electrically-conductive connections |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hugo Sonnenfeld | 18 |
| #2 | Sonnenfeld Hugo | 7 |
| #3 | Pachner Franz | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ES103291A1 | Tri or multi-wire electric cable for strong current and procedure to manufacture it. | |
| CA287304A | Electrical cable | |
| CA504377A | Electrical power cable |