Inventor

Michael Prein

Inventor

Brasschaat, BE

Overview

26→

Patents

2001–2014

Patent span

Chemistry

Primary field (CPC C)

Patents· 26 as inventor

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

C07Cprimary

C07CAcyclic or carbocyclic compounds23%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds20%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry11%

Y10TTechnical subjects covered by former us classification9%

C08JWorking-up5%

C08LCompositions of macromolecular compounds5%

Y02PClimate change mitigation technologies in the production or processing of goods5%

B29CShaping or joining of plastics4%

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

C09KMaterials for miscellaneous applications, not provided for elsewhere4%

PatentTitleYear

8,648,163'High molecular weight, random, bisphenol based copoly(phosphonate carbonate)s'2014 8,410,184'Regeneration of acidic ion exchangers'2013 8,389,664'High molecular weight, random, bisphenol based copoly(phosphonate carbonate)s'2013 7,799,889'Polycarbonates with good wettability'2010 7,763,757'Crystallization processes for producing bisphenols'2010 7,582,720'Light-scattering shaped articles of high light transmission and the use thereof in flat screens'2009 7,301,056'Process for the separation of phenol from phenol-containing streams from the preparation of Bisphenol A'2007 7,071,283'Reactive rectification'2006 6,919,487'Bis(4-hydroxyaryl)alkanes'2005 6,906,227'Bisphenol phenol adducts'2005 6,887,970'Method for producing polycarbonates'2005 6,828,465'Method for producing bisphenols'2004 6,774,268'Substance mixture containing bisphenol A'2004 6,723,885'Bisphenol production'2004 6,723,881'Method for conditioning ion exchangers'2004 6,710,152'Solid particles'2004 6,710,211'Method for the production of bisphenol-a'2004 6,706,848'Method for producing polycarbonate'2004 6,703,473'Process for producing polycarbonate'2004 6,683,223'Fluidised bisphenol dust'2004 6,682,794'Polycarbonate containers'2004 6,675,844'Method of loading moist, sticky bulk material into a fluid pervious container'2004 6,590,128'Initiation method of a method for producing 2,2-bis(4-hydroxyphenyl)propane'2003 6,509,406'Plastic molding materials which can be detected by X-ray contrast'2003 6,395,864'Polycarbonates with a low yellowness index'2002 6,291,630'Method for producing a liquid formulation of tetraphenylphosphonium phenolate'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001–2005Patents assigned to BAYER AG (18)· patent assignee history

2001–2014Based in Krefeld, DE· patent location history

2002–2006Based in Brasschaat, BE· patent location history

2006–2014Patents assigned to BAYER MATERIALSCIENCE AG (8)· patent assignee history

2013–2014Patents assigned to FRX POLYMERS INC (2)· patent assignee history

2013Patents assigned to PREIN MICHAEL (2)· patent assignee history

2013Patents assigned to BLASCHKE ULRICH (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BAYER AG	18	2001–2005
BAYER MATERIALSCIENCE AG	8	2006–2014
FRX POLYMERS INC	2	2013–2014
PREIN MICHAELself	2	2013
BLASCHKE ULRICH	1	2013

Locations

Location	Patents	Span
Brasschaat, BE	17	2002–2006
Krefeld, DE	9	2001–2014