P
PatentIndex
Search
Landscape
Sign in
Inventor
FITZNER KLAUS
DE
3 patents
⚠️ This page may combine multiple inventors who share the name “FITZNER KLAUS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NICKEL GMBH HEINRICH
2 patents
US5144781A
Sep 8, 1992
Double floor for removing air from rooms
NICKEL GMBH HEINRICH
23 citations
86
US4898087A
Feb 6, 1990
Laminarizer
NICKEL GMBH HEINRICH
14 citations
68
KRAFTWERK UNION AG
1 patent
US4576088A
Mar 18, 1986
Pressure-wave protective flap (or damper)
KRAFTWERK UNION AG
21 citations
76