Inventor

Kaspar Hallenberger

Inventor

Leverkusen, DE

Overview

20→

Patents

1992–2018

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.

C07Cprimary

C07CAcyclic or carbocyclic compounds47%

Y02PClimate change mitigation technologies in the production or processing of goods21%

B01DSeparation12%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry6%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium6%

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

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%

PatentTitleYear

10,131,617Method for producing diaryl carbonates2018 10,125,083Method for producing diaryl carbonates2018 9,765,012'Method for producing diaryl carbonate'2017 9,040,732'Process for preparing diaryl carbonates from dialkyl carbonates'2015 8,952,189'Process for preparing diaryl carbonates or alkyl aryl carbonates from dialkyl carbonates'2015 8,039,659'Processes for preparing diaryl and/or alkylaryl carbonates from dialkyl carbonates'2011 8,022,240'Processes for purifying diaryl carbonates'2011 8,003,817'Process for the preparation of diaryl carbonates or arylalkyl carbonates from dialkyl carbonates'2011 6,703,473'Process for producing polycarbonate'2004 6,673,955'Preparation of triethyl phosphate'2004 6,605,191'Method for reprocessing reaction mixtures containing diaryl carbonate'2003 6,437,166'Method for reprocessing reaction mixtures containing diaryl carbonate'2002 6,420,465'Process for preparing phosphoric acid esters'2002 6,288,284'Method for producing bis(4-hydroxyaryl)alkanes'2001 5,785,823'Process for the purification of bisphenol'1998 5,734,004'Process for the purification of carbonic acid diaryl ester'1998 5,696,295'Method for the preparation of ultra-pure bisphenol A and the use thereof'1997 5,562,887'Purification of alkyl nitrite-containing exhaust gases'1996 5,523,452'Process for preparing dimethyl carbonate'1996 5,149,890'Process for the isolation of pure dinitrotoluenes'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2004Patents assigned to BAYER AG (12)· patent assignee history

1992–2018Based in Leverkusen, DE· patent location history

2011–2017Patents assigned to BAYER MATERIALSCIENCE AG (6)· patent assignee history

2015Patents assigned to DÜX ANDRE (2)· patent assignee history

2015Patents assigned to HALLENBERGER KASPAR (2)· patent assignee history

2017–2018Patents assigned to COVESTRO DEUTSCHLAND AG (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BAYER AG	12	1992–2004
BAYER MATERIALSCIENCE AG	6	2011–2017
COVESTRO DEUTSCHLAND AG	3	2017–2018
DÜX ANDRE	2	2015
HALLENBERGER KASPARself	2	2015

Locations

Location	Patents	Span
Leverkusen, DE	20	1992–2018