Inventor
Edward F. Steigelmann
Inventor
Naperville, IL, US
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation28%
C07CAcyclic or carbocyclic compounds18%
Y10TTechnical subjects covered by former us classification10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry5%
C08JWorking-up5%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients5%
C08LCompositions of macromolecular compounds5%
D01DMechanical methods or apparatus in the manufacture of artificial filaments, threads, fibres, bristles or ribbons5%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds3%
PatentTitleYear
5,300,722'Oxygen-free aromatic alkylation process'19945,118,896'Aromatic alkylation process using large macropore, small particle size, zeolite catalyst'19924,239,506'Use of aqueous, non-sweep liquid during membrane separation'19804,237,596'Method of converting membrane separation units'19804,235,983'Purification of olefin recycle to polymerization'19804,188,817'Method for detecting membrane leakage'19804,166,723'Gelled hydrocarbon fuels'19794,106,920'Method of making a semi-permeable, essentially water-insoluble, hydrophilic nylon membrane and resultant product'19784,047,908'Gas separation membrane'19774,039,499'Product'19774,015,955'Fluid separation process and membrane'19774,014,665'Membrane process and product'19773,980,605'Semi-permeable membrane compositions based on blends of polyamides and polyvinyl alcohols'19763,951,621'Process for separating one or more components of a gaseous mixture'19763,940,469'Process for forming hollow fibers'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1977Patents assigned to STANDARD OIL CO (6)· patent assignee history
1976–1979Based in Forest Park, IL, US· patent location history
1977–1980Patents assigned to STANDARD OIL CO INDIANA (7)· patent assignee history
1977–1994Based in Naperville, IL, US· patent location history
1992–1994Patents assigned to AMOCO CORP (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| STANDARD OIL CO INDIANA | 7 | 1977–1980 |
| STANDARD OIL CO | 6 | 1976–1977 |
| AMOCO CORP | 2 | 1992–1994 |
Locations
| Location | Patents | Span |
|---|---|---|
| Naperville, Illinois, US | 8 | 1977–1994 |
| Forest Park, Illinois, US | 7 | 1976–1979 |