Inventor

VISSER PIETER

NL3 patents

⚠️ This page may combine multiple inventors who share the name “VISSER PIETER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SHELL OIL CO

2 patents

US4294720AOct 13, 1981

Process for the preparation of gas mixtures

SHELL OIL CO18 citations64

US4538735ASep 3, 1985

Apparatus for separating solids of different shapes

SHELL OIL CO4 citations58

VISSER S GRAVENDEEL HOLDING

1 patent

US6435228B1Aug 20, 2002

Drilling apparatus for filled pots during movement

VISSER S GRAVENDEEL HOLDING5 citations55