Inventor
Stephan Astegger
Inventor
Vocklabruck, AT
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
D01Fprimary
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons24%
C02FTreatment of water, waste water, sewage, or sludge14%
Y02PClimate change mitigation technologies in the production or processing of goods14%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry10%
C07DHeterocyclic compounds10%
C08BPolysaccharides10%
B01DSeparation5%
C07CAcyclic or carbocyclic compounds5%
C08JWorking-up5%
C08LCompositions of macromolecular compounds5%
PatentTitleYear
5,847,129'Process for the regeneration of an aqueous process liquid of the amine-oxide process'19985,409,532'Amine-oxides'19955,216,144'Method of producing shaped cellulosic articles'19935,189,152'Cellulose solution in water and NMMO'19935,118,423'Method of removing water from a dilute solution of N-methylmorpholine-N-oxide, N-methylmorpholine, or morpholine'19925,053,138'Process for purifying an aqueous solution of N-methyl-morpholine N-oxide'19915,043,075'Method of removing amines'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–1998Patents assigned to CHEMIEFASER LENZING AG (7)· patent assignee history
1991–1995Based in Vocklabruck, AT· patent location history
1991Based in Vocklabruk, AT· patent location history
1998Based in Timelkam, AT· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CHEMIEFASER LENZING AG | 7 | 1991–1998 |
Locations
| Location | Patents | Span |
|---|---|---|
| Vocklabruck, AT | 5 | 1991–1995 |
| Timelkam, AT | 1 | 1998 |
| Vocklabruk, AT | 1 | 1991 |