Inventor

Frank J. Hartdegen

Inventor

Columbia, MD, US

Overview

8→

Patents

1978–1982

Patent span

Chemistry

Primary field (CPC C)

Patents· 8 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 bonds19%

C12NMicroorganisms or enzymes19%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%

A61KPreparations for medical, dental or toiletry purposes8%

C13KSaccharides obtained from natural sources or by hydrolysis of naturally occurring disaccharides, oligosaccharides or polysaccharides8%

A01CPlanting6%

A01GHorticulture6%

B29CShaping or joining of plastics6%

C08JWorking-up6%

C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture6%

PatentTitleYear

4,342,834'Enzymes bound to polyurethane'1982 4,312,946'Preparation and use of enzymes bound to polyurethane'1982 4,250,267'Immobilized biological material'1981 4,237,229'Immobilization of biological material with polyurethane polymers'1980 4,195,127'Process for immobilizing proteins'1980 4,098,645'Immobilization of proteins with polyurethane polymers'1978 4,094,744'Water-dispersible protein/polyurethane reaction product'1978 4,073,884'Promotion of feed efficiency'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1982Patents assigned to GRACE W R & CO (8)· patent assignee history

1978–1982Based in Columbia, MD, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
GRACE W R & CO	8	1978–1982

Locations

Location	Patents	Span
Columbia, Maryland, US	8	1978–1982