Inventor

HENDERSON CHRISTOPHER P

GB57 patents

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

HENDERSON CHRISTOPHER P

3M INNOVATIVE PROPERTIES CO

Flat-folded personal respiratory protection devices and processes for preparing same

Flat-folded personal respiratory protection devices and processes for preparing same

Flat-folded personal respiratory protection devices and processes for preparing same

Flat-folded personal respiratory protection devices and processes for preparing same

Multi-part headband and respirator mask assembly and process for making same

Face mask that has a filtered exhalation valve

Personal respiratory protection device

Flat-folded personal respiratory protection devices and processes for preparing same

Method of making a flat-folded personal respiratory protection device

Processes for preparing flat-folded personal respiratory protection devices

Flat-folded personal respiratory protection devices and processes for preparing same

Personal respiratory protection device having an exhalation valve

Elastomeric composite headband

Respiratory protection mask

Mask

Filtering face-piece respirator that has expandable mask body

Filter element that has a thermo-formed housing around filter material

Personal respiratory protection device that has a three panelled look

Personal respiratory protection device that has left and right tabs

Protective garments incorporating bands of welded or adhesively-bonded elastomeric material

Maintenance-free respirator that has concave portions on opposing sides of mask top section

Flat-folded personal respiratory protection devices and processes for preparing same

Anatomically fitted respiratory component belt

Rigid air ducting for respirator hoods and helmets

Tabs on a personal respiratory protection device

Ultrasonic bonding method

Bond pattern for a personal respiratory protection device

Face mask that has a filtered exhalation valve

Shape retaining flat-fold respirator

Chin tab

Nose tab

Bond pattern on a filtering face-piece respirator

Eye-wear articles for use with respiratory masks

Powered air-purifying respirator

Personal respiratory protection device

Personal respiratory protection device

Respirator tab

3M INNOVATIVE PROPERTIES COMPANY

Respirator device

Image-based personal protective equipment fit system using worker-specific fit test image data

Respirator headband

Personal respiratory protection device

Anti-fog respirator

Respirator tab

Anti-fog respirator

HENDERSON CHRISTOPHER P

Respiratory mask

Non-elastomeric respirator mask that has deformable cheek portions

MINNESOTA MINING & MFG

Multi-part headband and respirator mask assembly and process for making same

FACER JOHN M

Maintenance-free anti-fog respirator

CURRAN DESMOND T

Respiratory mask

BOSTOCK GRAHAM J

Flat-folded personal respiratory protection devices