| Patent | Date |
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Distillation Of Polyisocyanates
App 20220267500 - Merkel; Michael ; et al. | 2022-08-25 |
Process for separating an organic isocyanate
Grant 11,279,670 - Kobylka , et al. March 22, 2 | 2022-03-22 |
Multistep process for the preparation of diisocyanates
Grant 11,174,222 - Merkel November 16, 2 | 2021-11-16 |
Process For Preparing Polyisocyanates Containing Urethane Groups
App 20210284787 - Merkel; Michael ; et al. | 2021-09-16 |
Process For Separating An Organic Isocyanate
App 20210171450 - Kobylka; Manfred ; et al. | 2021-06-10 |
Bulk Material Comprising Solid Diisocyanates And Prepolymers Containing Urethane Groups Obtainable Therefrom
App 20210163658 - Merkel; Michael ; et al. | 2021-06-03 |
Cleaning device for gas flows from isocyanate production
Grant 10,919,845 - Kobylka , et al. February 16, 2 | 2021-02-16 |
Method For Recovering Diisocyanates From Distillation Residues
App 20210024459 - Morawski; Joerg ; et al. | 2021-01-28 |
Aniline purification process
Grant 10,889,539 - Merkel , et al. January 12, 2 | 2021-01-12 |
Method For Preparing An Amine Hydrochloride Suspension
App 20200392074 - Merkel; Michael ; et al. | 2020-12-17 |
Process For The Preparation Of Di- Or Polyformamides
App 20200369601 - Jens; Christian ; et al. | 2020-11-26 |
Energy-efficient method for providing a purified phosgene vapor
Grant 10,843,927 - Merkel , et al. November 24, 2 | 2020-11-24 |
Process For The Preparation Of Isocyanates
App 20200339505 - Merkel; Michael ; et al. | 2020-10-29 |
Multistep Process For The Preparation Of Diisocyanates
App 20200277253 - Merkel; Michael | 2020-09-03 |
Multistep Process For The Preparation Of Hexamethylene Diisocyanate, Pentamethylene Diisocyanate Or Toluene Diisocyanate
App 20200277254 - Merkel; Michael | 2020-09-03 |
Energy-efficient Method For Providing A Purified Phosgene Vapor
App 20200180965 - Merkel; Michael ; et al. | 2020-06-11 |
Aniline Purification Process
App 20200123097 - Merkel; Michael ; et al. | 2020-04-23 |
Cleaning Device For Gas Flows From Isocyanate Production
App 20200024225 - Kobylka; Manfred ; et al. | 2020-01-23 |
Method for treating a substance mixture comprising an aromatic amine, in particular a substance mixture of raw aniline
Grant 9,682,917 - Merkel , et al. June 20, 2 | 2017-06-20 |
Method for stopping a reaction during the production of aromatic amines from nitroaromatics
Grant 9,469,594 - Merkel , et al. October 18, 2 | 2016-10-18 |
Process for the purification of aniline from gas phase hydrogenations
Grant 9,447,021 - Merkel , et al. September 20, 2 | 2016-09-20 |
Chemical reactor with knitted wire mesh fabric as a holding device for particles
Grant 9,364,810 - Merkel , et al. June 14, 2 | 2016-06-14 |
Method for starting a reaction during the production of aromatic amines from nitroaromatics
Grant 9,290,438 - Merkel , et al. March 22, 2 | 2016-03-22 |
Process for the production of nitrobenzene by adiabatic nitration
Grant 9,284,256 - Knauf , et al. March 15, 2 | 2016-03-15 |
Catalyst and method for producing aromatic amines in the gas phase
Grant 9,266,094 - Merkel , et al. February 23, 2 | 2016-02-23 |
Method for producing nitrobenzene by adiabatic nitriding
Grant 9,260,377 - Knauf , et al. February 16, 2 | 2016-02-16 |
Process for preparing aromatic amines
Grant 9,139,510 - Merkel , et al. September 22, 2 | 2015-09-22 |
Method For Producing Nitrobenzene By Adiabatic Nitriding
App 20150175522 - Knauf; Thomas ; et al. | 2015-06-25 |
Process For The Production Of Nitrobenzene By Adiabatic Nitration
App 20150166460 - Knauf; Thomas ; et al. | 2015-06-18 |
Method for continuous production of nitrobenzene
Grant 9,012,700 - Knauf , et al. April 21, 2 | 2015-04-21 |
Method For Treating A Substance Mixture Comprising An Aromatic Amine, In Particular A Substance Mixture Of Raw Aniline
App 20150094493 - Merkel; Michael ; et al. | 2015-04-02 |
Method For Stopping A Reaction During The Production Of Aromatic Amines From Nitroaromatics
App 20150087862 - Merkel; Michael ; et al. | 2015-03-26 |
Process For The Purification Of Aniline From Gase Phase Hydrogenations
App 20150080610 - Merkel; Michael ; et al. | 2015-03-19 |
Method For Starting A Reaction During The Production Of Aromatic Amines From Nitroaromatics
App 20150080611 - Merkel; Michael ; et al. | 2015-03-19 |
Method For Continuous Production Of Nitrobenzene
App 20150073180 - Knauf; Thomas ; et al. | 2015-03-12 |
Catalyst And Method For Producing Aromatic Amines In The Gas Phase
App 20140309457 - Merkel; Michael ; et al. | 2014-10-16 |
Process For Preparing Aromatic Amines
App 20140128638 - Merkel; Michael ; et al. | 2014-05-08 |
Chemical Reactor Having Woven Wire Mesh Product As A Retaining Device For Particles
App 20130296610 - Merkel; Michael ; et al. | 2013-11-07 |
Methods and computer systems for displaying time variant tabular data
Grant 8,560,936 - Merkel , et al. October 15, 2 | 2013-10-15 |
Method For Continuously Producing Nitrobenzene
App 20130204043 - Knauf; Thomas ; et al. | 2013-08-08 |
Process For Restoring Catalyst Activity
App 20130131384 - Merkel; Michael ; et al. | 2013-05-23 |
Polyisocyanurate-coated Parts And The Use Thereof In Offshore Applications
App 20120301651 - Krause; Jens ; et al. | 2012-11-29 |
Multi-layered Fire-resistant Plastic Material
App 20110241248 - Merkel; Michael ; et al. | 2011-10-06 |
Plastics Mouldings Of Polyurethane And Their Use
App 20100036080 - Merkel; Michael ; et al. | 2010-02-11 |
Method of manufacturing composite panels
App 20060175730 - Merkel; Michael | 2006-08-10 |
Methods and computer systems for displaying time variant tabular data
App 20040010751 - Merkel, Michael ; et al. | 2004-01-15 |
Method of making foam-filled composite products
Grant 6,117,376 - Merkel September 12, 2 | 2000-09-12 |
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