P

Inventor

DREWS RALF

DE9 patents
⚠️ This page may combine multiple inventors who share the name “DREWS RALF”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DRAEGERWERK AG

4 patents
US5601078AFeb 11, 1997

Breathing apparatus with a display unit

DRAEGERWERK AG176 citations95
US5515846AMay 14, 1996

Respirator with a breathing filter

DRAEGERWERK AG40 citations91
US5704348AJan 6, 1998

Breathing valve

DRAEGERWERK AG12 citations72
US5625902AMay 6, 1997

Protective hood made of an elastic material

DRAEGERWERK AG8 citations70

GREIF VELOX MASCHF GMBH

2 patents
US12466589B2Nov 11, 2025

Valve bag filling device

GREIF VELOX MASCHF GMBH0 citations55
US12312120B2May 27, 2025

Closure device for flexible containers and a method for closing flexible containers

GREIF VELOX MASCHF GMBH0 citations44

DRAEGER SAFETY AG & CO KGAA

1 patent
US7336191B2Feb 26, 2008

Gas-measuring system

DRAEGER SAFETY AG & CO KGAA12 citations80

DREWS RALF

1 patent
US8212211B2Jul 3, 2012

System for protecting and/or guiding persons in dangerous situations

DREWS RALF7 citations77

&AEGER SICHERHEITSTECHNIK

1 patent
US6338341B1Jan 15, 2002

Protective breathing mask

&AEGER SICHERHEITSTECHNIK4 citations54