Inventor
John A. Jensvold
Inventor
Benicia, CA, US
Overview
Patents· 26 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation54%
C01BNon-metallic elements15%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds6%
Y02CCapture, storage, sequestration or disposal of greenhouse gases [ghg]4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%
C07CAcyclic or carbocyclic compounds2%
C08JWorking-up2%
C10LFuels not otherwise provided for2%
D01DMechanical methods or apparatus in the manufacture of artificial filaments, threads, fibres, bristles or ribbons2%
D03DWoven fabrics2%
PatentTitleYear
11,103,827Two-stage gas separation unit contained within a single housing202110,933,369Gas dehydration membrane module with integral filter202110,843,127Compact membrane module system for gas separation202010,561,978Membrane-based gas separation with retentate sweep20209,764,275'Membrane module capable of operation in extreme temperature environments'20179,545,599'Hybrid membrane system for gas streams with condensable hydrocarbons'20179,034,957'High-flow hollow-fiber membranes containing polymer blends'20158,409,324'Sweep gas for membrane-based dehydration modules'20137,578,871'Gas separation membrane with partial surfactant coating'20097,517,388'Air separation membrane module with variable sweep stream'20097,294,174'Air dehydration membrane'20076,641,643'Ceramic deoxygenation hybrid systems for the production of oxygen and nitrogen gases'20036,387,163'Ozone treatment of surface of membrane to improve permselectivity'20026,168,649'Membrane for separation of xenon from oxygen and nitrogen and method of using same'20016,156,381'Ozone treatment of surface of membrane to improve permselectivity'20006,153,097'Internal staged permeator for fluid separation'20006,136,073'Boreside feed modules with permeate flow channels'20005,598,874'Loom processing of hollow fiber membranes'19975,409,524'Membranes having improved selectivity and recovery, and process for making same'19955,282,964'Boreside feed hollow fiber membrane device'19945,163,977'Semi-permeable gas separation membranes containing non-ionic surfactants possessing improved resistance to thermal compaction and processes for making and using the same'19925,141,530'Polycarbonate, polyester, and polyestercarbonate semi-permeable gas separation membranes possessing improved gas selectivity and recovery, and processes for making and using the same'19924,955,993'Semi-permeable hollow fiber gas separation membranes possessing a non-external discriminating region'19904,900,334'Process for treating a liquid-wet polycarbonate membrane to improve its gas separation properties'19904,838,904'Semi-permeable membranes with an internal discriminating region'19894,772,392'Process for preparing POWADIR membranes from tetrahalobisphenol A polycarbonates'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–1995Patents assigned to DOW CHEMICAL CO (8)· patent assignee history
1988–2021Based in Benicia, CA, US· patent location history
1992Based in Benica, CA, US· patent location history
1997–2001Patents assigned to MG GENERON INC (2)· patent assignee history
2000–2002Patents assigned to MG GENERON (4)· patent assignee history
2003–2021Patents assigned to GENERON IGS INC (12)· patent assignee history
2021Patents assigned to GENERAN IGS INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GENERON IGS INC | 12 | 2003–2021 |
| DOW CHEMICAL CO | 8 | 1988–1995 |
| MG GENERON | 4 | 2000–2002 |
| MG GENERON INC | 2 | 1997–2001 |
| GENERAN IGS INC | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Benicia, California, US | 25 | 1988–2021 |
| Benica, California, US | 1 | 1992 |