Inventor
Donald W. Hayward
Inventor
Waterville, OH, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B29Bprimary
B29BPreparation or pretreatment of the material to be shaped21%
B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts17%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management14%
B29CShaping or joining of plastics10%
B29LIndexing scheme associated with subclass b29c, relating to particular articles10%
B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers7%
G01NInvestigating or analysing materials by determining their chemical or physical properties7%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds3%
C08JWorking-up3%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
PatentTitleYear
7,612,161'Method for treating extremely small particles of plastic'20097,579,431'Method for treating extremely small particles of polyethylene terephthalate'20097,380,735'Method for preparing extremely small particles of recycled polyethylene terephthalate'20087,040,167'Method and apparatus for detecting holes in plastic containers'20066,997,407'Decontamination of RPET through particle size reduction'20066,553,809'Method and apparatus for detecting holes in plastic containers'20035,899,392'Decontamination of RPET through particle size reduction'19995,353,943'Easy-opening composite closure for hermetic sealing of a packaging container by double seaming'19944,894,268'Stretch blow-molded polyethylene terephthalate wide mouth container and intermediate article'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–1994Patents assigned to SONOCO PRODUCTS CO (2)· patent assignee history
1990Based in Florence, SC, US· patent location history
1994–2009Based in Waterville, OH, US· patent location history
1999–2006Patents assigned to PLASTIC TECHN INC (4)· patent assignee history
2008–2009Patents assigned to PHOENIX TECHNOLOGIES INT (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PLASTIC TECHN INC | 4 | 1999–2006 |
| PHOENIX TECHNOLOGIES INT | 3 | 2008–2009 |
| SONOCO PRODUCTS CO | 2 | 1990–1994 |
Locations
| Location | Patents | Span |
|---|---|---|
| Waterville, OH, US | 8 | 1994–2009 |
| Florence, SC, US | 1 | 1990 |