Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9771775 | Valve for a hydrocarbon well, hydrocarbon well provided with such valve and use of such valve | Lubbertus Lugtmeier | 2017-09-26 |
| 9638001 | Method for producing hydrocarbon gas from a wellbore and valve assembly | Cornelis Adrianus Maria Veeken, Lubbertus Lugtmeier, Ewout Biezen | 2017-05-02 |