Inventor

Tony van Osselaer

Inventor

Krefeld, DE

Overview

18→

Patents

1988–2005

Patent span

Chemistry

Primary field (CPC C)

Patents· 18 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C07Cprimary

C07CAcyclic or carbocyclic compounds46%

C07DHeterocyclic compounds12%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds12%

Y10TTechnical subjects covered by former us classification8%

B29BPreparation or pretreatment of the material to be shaped4%

B29CShaping or joining of plastics4%

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. inserts4%

C02FTreatment of water, waste water, sewage, or sludge4%

F26BDrying solid materials or objects by removing liquid therefrom4%

G11BInformation storage based on relative movement between record carrier and transducer4%

PatentTitleYear

6,858,758'Method for producing bisphenols'2005 6,710,154'Polycarbonate substrates'2004 6,695,991'Device for exchanging a die plate of a prilling tower and method for the automatic exchange'2004 6,689,464'Method and device for producing bisphenol a prills and bisphenol a prills produced according to this method'2004 6,682,794'Polycarbonate containers'2004 6,414,198'Method for producing bisphenol-A'2002 6,384,288'Method for the production of bis(4-hydroxyaryl)alkanes'2002 6,316,678'Method for producing dis(4-hydroxyaryl) alkanes'2001 6,294,702'Method for continuous production of dihydroxydiphenylalkanes'2001 5,959,160'Purification of p,p-bisphenolate solutions'1999 5,921,089'Method for the transport and storage of phenol'1999 5,786,445'Process for drying polymeric powders and polymeric agglomerates'1998 5,756,860'Crystalline adduct of bisphenol A and bisphenol TMC'1998 5,696,295'Method for the preparation of ultra-pure bisphenol A and the use thereof'1997 5,545,764'Process for the continuous production of high purity bisphenol A'1996 4,801,707'Process for the production of benzothiazole sulphene amides'1989 4,762,931'Process for the work-up of the mother liquors from the preparation of benzothiazole compounds'1988 4,751,301'Process for preparing benzothiazolesulphenamides'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–2005Patents assigned to BAYER AG (18)· patent assignee history

1988–1999Based in Belsele, BE· patent location history

1999Patents assigned to PHENOLCHEMIE GMBH & CO KG (1)· patent assignee history

2001–2005Based in Krefeld, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BAYER AG	18	1988–2005
PHENOLCHEMIE GMBH & CO KG	1	1999

Locations

Location	Patents	Span
Krefeld, DE	9	2001–2005
Belsele, BE	9	1988–1999