Inventor

Olivier Zehnacker

Inventor

Dortmund, DE

Overview

9→

Patents

2014–2019

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.

B01Dprimary

B01DSeparation14%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium14%

C09KMaterials for miscellaneous applications, not provided for elsewhere14%

F25BRefrigeration machines, plants or systems14%

C07DHeterocyclic compounds11%

F24FAir-conditioning11%

C01DCompounds of alkali metals, i.e. lithium, sodium, potassium, rubidium, caesium, or francium6%

C07CAcyclic or carbocyclic compounds6%

C02FTreatment of water, waste water, sewage, or sludge3%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients3%

PatentTitleYear

10,512,881Process for dehumidifying moist gas mixtures2019 10,512,883Process for dehumidifying moist gas mixtures2019 10,500,540Method for dehumidifying humid gas mixtures using ionic liquids2019 10,138,209Process for purifying an ionic liquid2018 10,105,644Process and absorbent for dehumidifying moist gas mixtures2018 9,840,473'Method of preparing a high purity imidazolium salt'2017 8,809,576'Method for producing a free acid from the salt thereof'2014 8,703,451'Method for the production of free carboxylic acids'2014 8,696,928'Operating medium for an absorption refrigeration device'2014

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2014–2019Patents assigned to EVONIK DEGUSSA GMBH (8)· patent assignee history

2014Patents assigned to ZEHNACKER OLIVIER (3)· patent assignee history

2014Patents assigned to HAAS THOMAS (2)· patent assignee history

2014Patents assigned to SCHRAVEN ALEXANDER (2)· patent assignee history

2014Patents assigned to TACKE THOMAS (2)· patent assignee history

2014Based in Recklinghausen, DE· patent location history

2017–2019Based in Dortmund, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
EVONIK DEGUSSA GMBH	8	2014–2019
ZEHNACKER OLIVIERself	3	2014
HAAS THOMAS	2	2014
SCHRAVEN ALEXANDER	2	2014
TACKE THOMAS	2	2014

Locations

Location	Patents	Span
Dortmund, DE	6	2017–2019
Recklinghausen, DE	3	2014