JH

Johannes J. Houtkamp

ND N.V. Optische Industrie "De Oude Delft": 4 patents #3 of 28Top 15%
BD B.V. Optische Industrie "De Oude Delft": 1 patents #13 of 31Top 45%
BD Bv Optische Industrie "De Oude Delft": 1 patents #1 of 11Top 10%
📍 Delft, NL: #108 of 1,192 inventorsTop 10%
Overall (All Time): #894,673 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
4855586 X-ray detector tube with sidewall-supporting rear wall 1989-08-08
4341955 Image intensifier of the proximity-focus type Hendrik Mulder 1982-07-27
4307130 Method of making the cathode of a diode image intensifier tube Lambertus Karel Van Geest 1981-12-22
4275326 Image intensifier tube with a light-absorbing electron-permeable layer 1981-06-23
4243905 Method of making the cathode of a diode image intensifier tube, and image intensifier tube having a cathode made by this method Lambertus Karel Van Geest 1981-01-06
4201797 Process for applying a light-absorbing, electron permeable layer within an image intensifier tube 1980-05-06