Inventor
Werner Guthlein
Inventor
Mannheim-Neckarau, DE
Overview
Patents· 19 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties26%
C12QMeasuring or testing processes involving enzymes, nucleic acids or microorganisms24%
C07DHeterocyclic compounds14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments8%
Y10TTechnical subjects covered by former us classification6%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium4%
C07HSugars2%
Y02PClimate change mitigation technologies in the production or processing of goods2%
PatentTitleYear
5,292,669'Agents for the detection of substrates with hydrolase activity'19945,260,428'Agent for the detection of substances with hydrolase activity'19935,202,233'Process for the detection of substances with hydrolase activity'19934,966,855'New redox indicators'19904,665,023'Imidazole derivatives as redox indicators'19874,442,033'Azo dyestuff for use as a chromogen in detecting leukocytes'19844,385,114'Oxidation indicators comprising 3,3\',5,5\'-tetraalkylbenzidine compounds'19834,331,760'Diagnostic agent for the detection of leukocytes and chromogens useful therein'19824,297,271'Guaiaconic acid A from guaiac resin'19814,296,202'Diagnostic composition for the detection of leukocytes and chromogens useful therein'19814,278,763'Diagnostic agents for the detection of proteolytic enzymes'19814,260,777'Diagnostic agent for the detection of protein in body fluids'19814,245,096'Bis-(2,4-dinitrophenyl)-methyl-pyridinium and quinolinium compounds'19814,219,336'Diagnostic agent and method for the detection of occult blood in feces'19804,070,495'Microscope slide'19784,013,416'Diagnostic means for the detection of protein in body fluids'19773,988,208'9-Substituted 3-aminocarbazole compounds and test strip indicator compositions'19763,975,398'9-Substituted 3-aminocarbazole compounds'19763,947,377'Stabilized indicator compositions containing 9-.gamma.-aminopropyl)-3-aminocarbazole'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1994Patents assigned to BOEHRINGER MANNHEIM GMBH (19)· patent assignee history
1976–1984Based in Mannheim-Neckarau, DE· patent location history
1981–1994Based in Mannheim, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BOEHRINGER MANNHEIM GMBH | 19 | 1976–1994 |
Locations
| Location | Patents | Span |
|---|---|---|
| Mannheim-Neckarau, DE | 12 | 1976–1984 |
| Mannheim, DE | 7 | 1981–1994 |