Inventor

Werner Prass

Inventor

Mainz, DE

Overview

20→

Patents

1990–2009

Patent span

Chemistry

Primary field (CPC C)

Patents· 20 as inventor

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

B82Yprimary

B82YSpecific uses or applications of nanostructures15%

Y10TTechnical subjects covered by former us classification15%

B05DProcesses for applying fluent materials to surfaces, in general9%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds9%

C07CAcyclic or carbocyclic compounds8%

G01NInvestigating or analysing materials by determining their chemical or physical properties8%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds6%

B01DSeparation4%

C08LCompositions of macromolecular compounds4%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments4%

PatentTitleYear

7,585,915'Water-resistant adhesives, their preparation and use'2009 6,093,766'Process for preparing polyvinyl alcohol stabilized solvent- and plastifier-free polyvinyl ester dispersions'2000 5,948,314'Composition containing an aerogel, method of producing said composition and the use thereof'1999 5,817,727'Polymer films for detecting chemical substances'1998 5,665,844'Polymer films for detecting chemical substances'1997 5,658,669'Composite membranes and processes for their production'1997 5,640,234'Optical sensor for detection of chemical species'1997 5,563,707'Interference enhanced optical sensor for detecting chemical species'1996 5,429,842'Process and device for producing ultrathin layers and layer element'1995 5,342,432'Composite membrane, process for its production and its use'1994 5,258,262'Radiation-sensitive film composed of at least one mono-molecular layer of fluorine-containing amphiphiles'1993 5,256,749'Amphiphilic polymers containing silane units and film comprising at least one monomolecular layer produced therefrom'1993 5,166,307'Polyamide and film made from at least one monomolecular layer of a polyamide'1992 5,120,809'Amphiphilic monomers with mixed-chain structure and polymers and film composed of at least one monomolecular layer thereof'1992 5,116,925'Amphiphilic monomers and polymers and film comprising at least one unimolecular layer thereof'1992 5,081,212'Polyurea and film composed of at least one monomolecular layer of a polyurea'1992 5,034,277'Film comprising at least one unimolecular layer'1991 4,988,606'Negative-working radiation-sensitive mixture with polymer having 1,2,3-thiadiazole groups, and recording material produced therefrom'1991 4,970,120'Film comprising unimolecular layers'1990 4,960,635'Film consisting of one or more monomolecular layers'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1999Patents assigned to HOECHST AG (18)· patent assignee history

1990–2009Based in Mainz, DE· patent location history

2000Patents assigned to CLARIANT GMBH (1)· patent assignee history

2009Patents assigned to CELANESE EMULSIONS GMBH (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HOECHST AG	18	1990–1999
CELANESE EMULSIONS GMBH	1	2009
CLARIANT GMBH	1	2000

Locations

Location	Patents	Span
Mainz, DE	20	1990–2009