Inventor
Artur Botta
Inventor
Krefeld, DE
Overview
Patents· 26 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds19%
C07DHeterocyclic compounds17%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds10%
C23FNon-mechanical removal of metallic material from surface10%
C09KMaterials for miscellaneous applications, not provided for elsewhere7%
B41MPrinting, duplicating, marking, or copying processes5%
G03CPhotosensitive materials for photographic purposes5%
A23KFodder2%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations2%
B22FWorking metallic powder2%
PatentTitleYear
5,723,694'Process for preparing monomethylated or dimethylated phenols'19985,338,861'Process for the preparation of N-substituted lactams'19945,084,544'Cold setting reaction resin mixture and use thereof'19925,059,391'Use of polyaralkylamines as corrosion inhibitors'19915,053,565'Process for the preparation of p-chlorotoluene'19915,053,566'Process for the preparation of oligophenyls dihalogenated in the 4,4\'-position'19915,024,987'Recording material'19914,960,943'Process for the preparation of phenylketones etherified in the 4-position'19904,950,817'Process for the preparation of 4,4\'-dihalobiphenyls'19904,902,830'Polyaralkylated hydroxybenzamides, process for their preparation and their use'19904,879,368'Oligobenzylated hydroxycarboxylic acid derivative'19894,468,392'Sulphinyl- and sulphonyl-azacycloheptan-2-ones, and their use as feed additives'19844,431,795'Copolymers of cyclic carbonic acid esters and lactams and their production'19844,377,670'Copolymers based on aliphatic polycarbonates and lactams'19834,328,330'Process for the production of polyureas'19824,325,739'Magnetic metal and alloy pigments'19824,278,791'Benzimidazolyl-2-alkane-phosphonic acids'19814,209,583'Corrosion preventative for two-bath stabilizer baths'19804,104,194'Method for protecting metal from erosion'19784,094,811'Process for the preparation of silver dispersions for filter layers and antihalation layers'19784,048,174'Process for preparing 1,2-fused-1,3-dinitrogen-heterocyclic compounds'19774,003,907'.DELTA..sup.1 -1-Azacycloalkene-2-carboxylic acids and their production'19774,001,318'Preparation of N-chloroformyl-carbamic acid amides and esters'19774,000,079'Anticorrosives'19763,972,890'Process for preparing a 2(.omega.-aminoalkyl)-1,3-heterocyclic compounds'19763,950,367'Preparation of N-chloroformyl-carbamic acid amides and esters'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1998Patents assigned to BAYER AG (24)· patent assignee history
1976–1998Based in Krefeld, DE· patent location history
1978–1980Patents assigned to AGFA GEVAERT AG (2)· patent assignee history
1981Based in Krefeld-Uerdingen, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAYER AG | 24 | 1976–1998 |
| AGFA GEVAERT AG | 2 | 1978–1980 |
Locations
| Location | Patents | Span |
|---|---|---|
| Krefeld, DE | 25 | 1976–1998 |
| Krefeld-Uerdingen, DE | 1 | 1981 |