Inventor
David G. Marsh
Inventor
Covington, WA, US
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification21%
D21HPulp compositions15%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form13%
A61FFilters implantable into blood vessels10%
D21FPaper-making machines8%
A61KPreparations for medical, dental or toiletry purposes5%
A61LMethods or apparatus for sterilising materials or objects in general5%
B27NManufacture by dry processes of articles, with or without organic binding agents, made from particles or fibres consisting of wood or other lignocellulosic or like organic material5%
C04BLime, magnesia5%
C08LCompositions of macromolecular compounds5%
PatentTitleYear
9,617,687'Meterable fibrous material'20178,715,463'Meterable fiberous material'20146,867,346'Absorbent composite having fibrous bands'20056,837,972'Tissue and towel products containing crosslinked cellulosic fibers'20056,821,388'Method for making tissue and towel products containing crosslinked cellulosic fibers'20046,734,335'Unitary absorbent system'20046,703,330'Fluted absorbent composite'20045,432,000'Binder coated discontinuous fibers with adhered particulate materials'19954,234,569'Production of aldehyde-treated allergen-containing substances'19804,226,853'Formalinized allergen-containing substances and production thereof'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–2017Patents assigned to MARSH DAVID G (3)· patent assignee history
1980Based in Overlea, MD, US· patent location history
1980Based in Baltimore, MD, US· patent location history
1995–2005Patents assigned to WEYERHAEUSER CO (6)· patent assignee history
1995–2005Based in Federal Way, WA, US· patent location history
2004–2017Based in Covington, WA, US· patent location history
2014–2017Patents assigned to HAMILTON ROBERT T (2)· patent assignee history
2014–2017Patents assigned to MANN CHRISTOPHER A (2)· patent assignee history
2014–2017Patents assigned to MILLER CHARLES E (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WEYERHAEUSER CO | 6 | 1995–2005 |
| MARSH DAVID Gself | 3 | 1980–2017 |
| HAMILTON ROBERT T | 2 | 2014–2017 |
| MANN CHRISTOPHER A | 2 | 2014–2017 |
| MILLER CHARLES E | 2 | 2014–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Covington, Washington, US | 4 | 2004–2017 |
| Federal Way, Washington, US | 4 | 1995–2005 |
| Overlea, Maryland, US | 1 | 1980 |
| Baltimore, Maryland, US | 1 | 1980 |