Inventor
Hannsjorg Ulrich
Inventor
Erftstadt, DE
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C11Dprimary
C11DDetergent compositions20%
C22BProduction and refining of metals13%
Y02PClimate change mitigation technologies in the production or processing of goods13%
B24DTools for grinding, buffing or sharpening7%
C01GCompounds containing metals not covered by subclasses c01d or c01f7%
C02FTreatment of water, waste water, sewage, or sludge7%
C06FMatches7%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium7%
C23FNon-mechanical removal of metallic material from surface7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
PatentTitleYear
5,066,415'Dishwashing agent'19914,959,170'Rinsing composition free from phosphate'19904,915,865'Dimensionally stable alkaline cleansing agents of low density, and a process for their preparation'19904,743,298'Process and apparatus for separating mercury and red phosphorus from one another'19884,676,909'Process for recovering noble metals from their cyanide complexes'19874,315,961'Production of striking surfaces for matches'19824,042,324'Process for inhibiting the corrosions and deposition of boiler scale in water-conveying systems'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1991Patents assigned to HOECHST AG (7)· patent assignee history
1977–1991Based in Erftstadt, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HOECHST AG | 7 | 1977–1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Erftstadt, DE | 7 | 1977–1991 |