Inventor

Hans-Dieter Ruprecht

Inventor

Cologne, DE

Overview

9→

Patents

1977–2005

Patent span

Chemistry

Primary field (CPC C)

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 bonds25%

B29CShaping or joining of plastics8%

B29LIndexing scheme associated with subclass b29c, relating to particular articles8%

C08JWorking-up8%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%

B29DProducing particular articles from plastics or from substances in a plastic state4%

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%

C07CAcyclic or carbocyclic compounds4%

C07DHeterocyclic compounds4%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients4%

PatentTitleYear

6,977,290'Process for preparing oligomeric aliphatic diols, polycarbonatediols based thereon and prepolymers thereof'2005 6,177,494'N,N\'-disubstituted N-(2-hydroxyalkyl)-ureas'2001 5,601,881'Method and device for coating a body rotating about an axis'1997 5,470,515'Rotational molding process for insulating pipes'1995 4,758,601'Process for the production of polysiloxane ionomers, polysiloxane ionomers and their use for the production of cellular polyurethane elastomers'1988 4,716,210'Use of liquid, cold-hardening polyurethane-urea-forming components for corrosion-inhibiting, wear-resistant coatings on metal and plastics surfaces and moldings and on stone and concrete'1987 4,294,934'Process for the production of elastic, optionally cellular, polyurethane ureas'1981 4,053,537'Process for the production of elastic composites'1977 4,025,579'Process for the production of sheet-like structures'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–2005Patents assigned to BAYER AG (9)· patent assignee history

1977–1988Based in Cologne, DE· patent location history

1995–2001Based in Koln, DE· patent location history

2005Based in KÃ¶ln, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BAYER AG	9	1977–2005

Locations

Location	Patents	Span
Cologne, DE	5	1977–1988
Koln, DE	3	1995–2001
KÃ¶ln, DE	1	2005