Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8479641 | Tea making device having an improved liquid collection chamber | Paulus Cornelis Duineveld, Willem Sjouke Wijma, Cornelis Frederik Akerboom, Gustaaf Frans Brouwer, Hendrik Cornelis Koeling +2 more | 2013-07-09 |
| 8113106 | Tea making device having an improved liquid collection chamber | Paulus Cornelis Duineveld, Willem Sjouke Wijma, Cornelis Frederik Akerboom, Gustaaf Frans Brouwer, Hendrik Cornelis Koeling +2 more | 2012-02-14 |