| # | Name | Location | Applications |
|---|---|---|---|
| 1. | 4E Ltd. | 🇺🇸 Gatesville, TX, United States | 1 |
| 2. | 4ELDER S.R.L. | 🇮🇹 Milan, Italy | 1 |
| 3. | 4ELEMENTS INVENT LTD | 🇲🇦 Swatar, Birkirkara, Malta, Morocco | 1 |
| 4. | 4Elements Invent Ltd | 🇲🇹 Swatar, Birkirkara, Malta | 1 |