Inventor
David G. Walton
Inventor
Honolulu, HI, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification16%
B01DSeparation13%
C08JWorking-up13%
B29CShaping or joining of plastics9%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy9%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution9%
Y02PClimate change mitigation technologies in the production or processing of goods9%
A61BDiagnosis3%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry3%
B65BMachines, apparatus or devices for, or methods of, packaging articles or materials3%
PatentTitleYear
8,962,214'Microporous PVDF films'20158,722,807'Polymer composition for injection moulding'20148,663,868'Microporous PVDF films'20147,338,692'Microporous PVDF films'20086,678,398'Dual mode real-time screening and rapid full-area, selective-spectral, remote imaging and analysis device and process'20046,413,621'Polymeric membranes and other polymer articles having desired surface characteristics and method for their preparation'20025,750,882'Gas permeability measurements for film envelope materials'19983,992,854'Method and apparatus for making dual compartment package'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976Based in Washington, IL, US· patent location history
1998Based in Knoxville, TN, US· patent location history
2002Based in White Bear Lake, MN, US· patent location history
2004–2015Based in Honolulu, HI, US· patent location history
2008–2015Patents assigned to 3M INNOVATIVE PROPERTIES CO (3)· patent assignee history
2014Patents assigned to BOREALIS TECH OY (1)· patent assignee history
2014Patents assigned to Bäckman Mats (1)· patent assignee history
2014Patents assigned to FLOYD ROBERT M (1)· patent assignee history
2014Patents assigned to FREEMYER HAROLD TODD (1)· patent assignee history
2014Based in Stenungsund, SE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| 3M INNOVATIVE PROPERTIES CO | 3 | 2008–2015 |
| BOREALIS TECH OY | 1 | 2014 |
| Bäckman Mats | 1 | 2014 |
| FLOYD ROBERT M | 1 | 2014 |
| FREEMYER HAROLD TODD | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Honolulu, HI, US | 4 | 2004–2015 |
| Stenungsund, SE | 1 | 2014 |
| White Bear Lake, Minnesota, US | 1 | 2002 |
| Knoxville, TN, US | 1 | 1998 |
| Washington, Illinois, US | 1 | 1976 |