Inventor

HACKE GERHARD A

5 patents

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

RESPAN PRODUCTS INC

2 patents

US7559323B2Jul 14, 2009

Disposable mask assembly with exhaust filter

RESPAN PRODUCTS INC31 citations89

US8342179B2Jan 1, 2013

Disposable mask assembly with exhaust filter and valve disc and method of assembling same

RESPAN PRODUCTS INC26 citations87

GRANDVIEW IND LIMITED

1 patent

US4076477AFeb 28, 1978

Multiple extrusion apparatus

GRANDVIEW IND LIMITED32 citations89

PLAS TECHNICAL MFG LTD

1 patent

USD275542SSep 18, 1984

Combined drinking straw and whistle

PLAS TECHNICAL MFG LTD17 citations75

HACKE GERHARD A

1 patent

US8622058B2Jan 7, 2014

Medical air tubing connection system

HACKE GERHARD A5 citations64