P
PatentIndex
Search
Landscape
Sign in
Inventor
HEYER HARALD
DE
5 patents
⚠️ This page may combine multiple inventors who share the name “HEYER HARALD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DRAEGERWERK AG
2 patents
US5804146A
Sep 8, 1998
Chemical oxygen generator
DRAEGERWERK AG
19 citations
89
US5653226A
Aug 5, 1997
Device for generating oxygen
DRAEGERWERK AG
21 citations
86
DRAEGER SAFETY AG & CO KGAA
2 patents
US9492691B2
Nov 15, 2016
Directional valve and respirator product with a directional valve
DRAEGER SAFETY AG & CO KGAA
4 citations
67
US7712348B2
May 11, 2010
Device and method for the selective determination of the quantity of oil mist
DRAEGER SAFETY AG & CO KGAA
5 citations
55
ROSERT MICHAEL
1 patent
US9808657B2
Nov 7, 2017
Directional valve and breathing mask with a directional valve
ROSERT MICHAEL
0 citations
28