P

Inventor

NAESS LUDVIG

NO4 patents
⚠️ This page may combine multiple inventors who share the name “NAESS LUDVIG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NORSKE STATS OLJESELSKAP

3 patents
US4852391AAug 1, 1989

Pipeline vehicle

NORSKE STATS OLJESELSKAP176 citations95
US4941511AJul 17, 1990

Device with a valve function

NORSKE STATS OLJESELSKAP20 citations65
US4852614AAug 1, 1989

Shut-off device which can be inserted into a pipeline

NORSKE STATS OLJESELSKAP6 citations59

OYGARDEN JOHN

1 patent
US4079493AMar 21, 1978

Centering apparatus for laying of tubes

OYGARDEN JOHN6 citations48