Inventor
Charles Douglas MacPherson
Inventor
Santa Barbara, CA, US
Overview
Patents· 28 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H10Kprimary
H10KOrganic electric solid-state devices14%
B42DBooks11%
G02BOptical elements, systems or apparatus9%
B82YSpecific uses or applications of nanostructures8%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein5%
G07DHandling of coins or valuable papers, e.g. testing, sorting by denominations, counting, dispensing, changing or depositing5%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds3%
C08LCompositions of macromolecular compounds3%
D21HPulp compositions3%
H01GCapacitors3%
PatentTitleYear
10,921,579Dynamic security device202110,780,727Security display devices, their production and use202010,568,348Brewed beverages and methods for producing same202010,551,610Alignment and rotation of Janus microparticles in response to acceleration202010,036,125Security device20189,834,029Security display devices, their production and use20179,738,105'Optically variable devices, their production and use'20179,323,042'Optically variable devices, their production and use'20169,307,777'Brewed beverages and methods for producing same'20169,170,417'Security device'20159,082,054'Authentication device for security documents'20158,894,098'Security device'20148,691,667'Method and apparatus for depositing a pattern on a substrate'20148,641,926'Water dispersible polythiophenes made with polymeric acid colloids'20147,923,276'Processes for forming electronic devices including spaced-apart radiation regions'20117,795,653'Electronic device including space-apart radiation regions and a process for forming the same'20107,732,810'Methods for forming an undercut region and electronic devices incorporating the same'20107,584,701'Processes for printing layers for electronic devices and printing apparatuses for performing the processes'20097,469,638'Electronic devices and processes for forming the same'20087,420,205'Electronic device including a guest material within a layer and a process for forming the same'20087,390,438'Water dispersible substituted polydioxythiophenes made with fluorinated polymeric sulfonic acid colloids'20087,276,453'Methods for forming an undercut region and electronic devices incorporating the same'20077,268,006'Electronic device including a guest material within a layer and a process for forming the same'20077,250,461'Organic formulations of conductive polymers made with polymeric acid colloids for electronics applications, and methods for making such formulations'20077,187,123'Display device'20076,992,326'Electronic device and process for forming same'20066,697,554'Adaptive optical waveguides'20046,438,295'Adaptive optical waveguide router'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002–2004Based in Ottawa, CA· patent location history
2006–2010Patents assigned to DUPONT DISPLAYS INC (4)· patent assignee history
2006–2021Based in Santa Barbara, CA, US· patent location history
2007–2014Patents assigned to DU PONT (11)· patent assignee history
2014–2017Patents assigned to MACPHERSON CHARLES DOUGLAS (6)· patent assignee history
2015–2021Patents assigned to BANK OF CANADA (5)· patent assignee history
2015–2018Patents assigned to NANOTECH SECURITY CORP (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DU PONT | 11 | 2007–2014 |
| MACPHERSON CHARLES DOUGLASself | 6 | 2014–2017 |
| BANK OF CANADA | 5 | 2015–2021 |
| DUPONT DISPLAYS INC | 4 | 2006–2010 |
| NANOTECH SECURITY CORP | 4 | 2015–2018 |
Locations
| Location | Patents | Span |
|---|---|---|
| Santa Barbara, California, US | 26 | 2006–2021 |
| Ottawa, CA | 2 | 2002–2004 |