P

Inventor

MARTIN PHILIP G

US32 patents
⚠️ This page may combine multiple inventors who share the name “MARTIN PHILIP G”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

3M INNOVATIVE PROPERTIES CO

13 patents
US7188622B2Mar 13, 2007

Filtering face mask that has a resilient seal surface in its exhalation valve

3M INNOVATIVE PROPERTIES CO124 citations96
US7028689B2Apr 18, 2006

Filtering face mask that uses an exhalation valve that has a multi-layered flexible flap

3M INNOVATIVE PROPERTIES CO91 citations96
US7013895B2Mar 21, 2006

Exhalation and inhalation valves that have a multi-layered flexible flap

3M INNOVATIVE PROPERTIES CO89 citations96
US5972463AOct 26, 1999

Undrawn, tough, durably melt-bondable, macrodenier, thermoplastic, multicomponent filaments

3M INNOVATIVE PROPERTIES CO83 citations96
US6036313AMar 14, 2000

Thermoplastic lens blocking material

3M INNOVATIVE PROPERTIES CO53 citations95
USD676527SFeb 19, 2013

Unidirectional valve

3M INNOVATIVE PROPERTIES CO41 citations94
US8365771B2Feb 5, 2013

Unidirectional valves and filtering face masks comprising unidirectional valves

3M INNOVATIVE PROPERTIES CO36 citations94
US8342180B2Jan 1, 2013

Filtering face-piece respirator that has expandable mask body

3M INNOVATIVE PROPERTIES CO42 citations93
US7503326B2Mar 17, 2009

Filtering face mask with a unidirectional valve having a stiff unbiased flexible flap

3M INNOVATIVE PROPERTIES CO33 citations92
US10905903B2Feb 2, 2021

Respirator having optically active exhalation valve

3M INNOVATIVE PROPERTIES CO9 citations86
US6013347AJan 11, 2000

Method of continuous tone imaging to provide an imaged high loft mat product

3M INNOVATIVE PROPERTIES CO27 citations86
US10137321B2Nov 27, 2018

Filtering face-piece respirator having an integrally-joined exhalation valve

3M INNOVATIVE PROPERTIES CO14 citations84
USD746974SJan 5, 2016

Exhalation valve flap

3M INNOVATIVE PROPERTIES CO10 citations84

MINNESOTA MINING & MFG

10 patents

MARTIN PHILIP G

2 patents

ANGADJIVAND SEYED A

2 patents

INLAND STEEL CO

2 patents

GEBREWOLD YONAS

1 patent

3M INNOVATIVE PROPERTIES COMPANY

1 patent

ALBERG RANDALL L

1 patent