Inventor

MACPHERSON CHARLES DOUGLAS

US25 patents

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

MACPHERSON CHARLES DOUGLAS

DU PONT

Water dispersible substituted polydioxythiophenes made with fluorinated polymeric sulfonic acid colloids

Methods for forming an undercut region and electronic devices incorporating the same

Processes for forming electronic devices including spaced-apart radiation regions

Methods for forming an undercut region and electronic devices incorporating the same

Electronic device including a guest material within a layer and a process for forming the same

Electronic devices and processes for forming the same

Electronic device including space-apart radiation regions and a process for forming the same

Processes for printing layers for electronic devices and printing apparatuses for performing the processes

BANK OF CANADA

Authentication device for security documents

Security display devices, their production and use

Security display devices, their production and use

Optical devices comprising microlenses and laser-fabricated patterns or structures, their manufacture and use

Security display devices, their production and use

Diffractive structures within polymer substrates, their manufacture and use

MACPHERSON CHARLES DOUGLAS

Security device

Optically variable devices, their production and use

Security device

Method and apparatus for depositing a pattern on a substrate

Optically variable devices, their production and use

DUPONT DISPLAYS INC

Organic formulations of conductive polymers made with polymeric acid colloids for electronics applications, and methods for making such formulations

Electronic device and process for forming same

Display device

HSU CHE HSIUNG

Water dispersible polythiophenes made with polymeric acid colloids

E INK CORP

Piezoelectric films including ionic liquids and methods of making piezoelectric films including ionic liquids

NANOTECH SECURITY CORP

Security device