Inventor
David F. Townsend
Inventor
Grayson, GA, US
Overview
Patents· 22 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
D21Hprimary
D21HPulp compositions31%
C08LCompositions of macromolecular compounds25%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds11%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds11%
B31FMechanical working or deformation of paper, cardboard or material worked in a manner analogous to paper5%
C09JAdhesives5%
C09DCoating compositions, e.g. paints, varnishes or lacquers4%
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 material2%
C04BLime, magnesia2%
D21CProduction of cellulose by removing non-cellulose substances from cellulose-containing materials2%
PatentTitleYear
10,633,798Blends of polymers as wet strengthening agents for paper202010,301,777Wet strengthened fiber products, wet strengthening resins, and methods for making and using same201910,144,818Resin compositions and methods for making and using same20189,834,890Blends of polymers as wet strengthening agents for paper20179,695,552'Wet strengthened fiber products, wet strengthening resins, and methods for making and using same'20179,611,590'Creping adhesives and methods for making and using same'20179,506,196'Blends of polymers as wet strengthening agents for paper'20169,404,221'Compositions that include hydrophobizing agents and stabilizers and methods for making and using same'20169,353,483'Paper products containing a polymeric wet strengthening agent'20169,243,365'Release aids with adjustable cloud points for creping processes'20169,180,644'Additives with cloud points to improve efficiency of release agents'20158,999,110'Blends of polymers as wet strengthening agents for paper'20158,246,781'Thermosetting creping adhesive with reactive modifiers'20127,897,013'Blends of glyoxalated polyacrylamides and paper strengthening agents'20117,863,395'Polyacrylamide-based strengthening agent'20117,589,153'Glyoxalated inter-copolymers with high and adjustable charge density'20097,488,403'Blends of glyoxalated polyacrylamides and paper strengthening agents'20097,119,148'Glyoxylated polyacrylamide composition strengthening agent'20067,034,087'Aldehyde scavengers for preparing temporary wet strength resins with longer shelf life'20066,784,253'Enhanced polymerization process'20046,387,487'Dual cure, low-solvent silicone pressure sensitive adhesives'20024,861,376'High-solids alkyl ketene dimer dispersion'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989Based in Hockessin, DE, US· patent location history
2002–2004Patents assigned to GEN ELECTRIC (2)· patent assignee history
2002Based in Voorheesville, NY, US· patent location history
2004–2011Based in Loganville, GA, US· patent location history
2006Patents assigned to GEORGIA PACIFIC RESINS (2)· patent assignee history
2009–2017Patents assigned to GEORGIA PACIFIC CHEMICALS LLC (13)· patent assignee history
2009–2012Patents assigned to FAVORS KARLA D (2)· patent assignee history
2009–2020Based in Grayson, GA, US· patent location history
2018–2020Patents assigned to ECOLAB USA INC (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEORGIA PACIFIC CHEMICALS LLC | 13 | 2009–2017 |
| ECOLAB USA INC | 3 | 2018–2020 |
| FAVORS KARLA D | 2 | 2009–2012 |
| GEN ELECTRIC | 2 | 2002–2004 |
| GEORGIA PACIFIC RESINS | 2 | 2006 |
Locations
| Location | Patents | Span |
|---|---|---|
| Grayson, Georgia, US | 16 | 2009–2020 |
| Loganville, Georgia, US | 4 | 2004–2011 |
| Voorheesville, New York, US | 1 | 2002 |
| Hockessin, Delaware, US | 1 | 1989 |