Issued Patents All Time
Showing 1–3 of 3 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 |
| 9435174 | System and method for injecting a treatment fluid into a wellbore and a treatment fluid injection valve | Lubbertus Lugtmeier | 2016-09-06 |