Inventor
Charles E. Koehler
Inventor
Baytown, TX, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Gprimary
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds33%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests33%
B29CShaping or joining of plastics10%
C08JWorking-up10%
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. inserts5%
C07CAcyclic or carbocyclic compounds5%
Y10TTechnical subjects covered by former us classification5%
PatentTitleYear
5,312,888'Flexible polyurethane rebond foam having improved tear resistance and method for the preparation thereof'19945,290,818'Flexible polyurethane rebond foam having improved tear resistance and method for the preparation thereof'19944,904,704'Rigid foams prepared from treated toluene diisocyanate residue'19904,339,343'Novel process and product'19824,289,858'Polyol-fluorocarbon-aminetriol blend and polyisocyanurate foams therefore'19814,256,802'Process for polyisocyanurate foams suitable for panels'19814,246,364'Process for polyisocyanurate foams based on an amide-diol blend'19814,179,094'Portable, expandable mold for fabricating substantially isotropic isocyanate based polymer foam buns'19794,104,346'Process for molding a substantially isotropic isocyanate-based polymer foam bun'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1982Patents assigned to UPJOHN CO (6)· patent assignee history
1978–1994Based in Baytown, TX, US· patent location history
1990–1994Patents assigned to DOW CHEMICAL CO (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UPJOHN CO | 6 | 1978–1982 |
| DOW CHEMICAL CO | 3 | 1990–1994 |
Locations
| Location | Patents | Span |
|---|---|---|
| Baytown, Texas, US | 9 | 1978–1994 |