Inventor
David W. Bjorkquist
Inventor
Wyoming, OH, US
Overview
Patents· 23 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A61Lprimary
A61LMethods or apparatus for sterilising materials or objects in general14%
D21HPulp compositions14%
B01DSeparation9%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry9%
C02FTreatment of water, waste water, sewage, or sludge9%
C11DDetergent compositions9%
Y10TTechnical subjects covered by former us classification9%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds7%
A61FFilters implantable into blood vessels4%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium4%
PatentTitleYear
7,749,394'Methods of treating water'20107,740,765'Methods for treating water'20107,740,766'Methods for treating water'20107,614,508'Water filter materials, water filters and kits containing silver coated particles and processes for using the same'20097,614,507'Water filter materials, water filters and kits containing particles coated with cationic polymer and processes for using the same'20097,614,506'Water filter materials and water filters and processes for using the same'20096,753,307'Laundry detergent compositions with a cationically charged dye maintenance polymer'20046,733,538'Laundry detergent compositions with certain cationically charged dye maintenance polymers'20046,433,245'Flushable fibrous structures'20026,127,593'Flushable fibrous structures'20005,698,074'Fibers and pulps for papermaking based on chemical combination of poly (acrylate-co-itaconate), polyol and cellulosic fiber'19975,488,157'.beta.-aminoalkyl and .beta.-N-peptidylaminoalkyl boronic acids'19965,443,899'Fibers and pulps for papermaking based on chemical combination of poly(acrylate-co-itaconate), polyol and cellulosic fiber'19955,442,100'.beta.-aminoalkyl and .beta.-N-peptidylaminoalkyl boronic acids'19955,431,842'Liquid detergents with ortho-substituted phenylboronic acids for inhibition of proteolytic enzyme'19955,354,491'Liquid detergent compositions containing protease and certain .beta.-aminoalkylboronic acids and esters'19945,160,789'Fibers and pulps for papermaking based on chemical combination of poly(acrylate-co-itaconate), polyol and cellulosic fiber'19925,138,002'Temporary wet strength resins with nitrogen heterocyclic nonnucleophilic functionalities and paper products containing same'19925,085,736'Temporary wet strength resins and paper products containing same'19925,049,235'Poly(methyl vinyl ether-co-maleate) and polyol modified cellulostic fiber'19915,008,344'Temporary wet strength resins and paper products containing same'19914,981,557'Temporary wet strength resins with nitrogen heterocyclic nonnucleophilic functionalities and paper products containing same'19914,603,176'Temporary wet strength resins'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986–2010Patents assigned to PROCTER & GAMBLE (20)· patent assignee history
1986–2010Based in Wyoming, OH, US· patent location history
2009Patents assigned to PUR WATER PURIFICATION PROD (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PROCTER & GAMBLE | 20 | 1986–2010 |
| PUR WATER PURIFICATION PROD | 3 | 2009 |
Locations
| Location | Patents | Span |
|---|---|---|
| Wyoming, OH, US | 23 | 1986–2010 |