Inventor
Keith A. Ludwig
Inventor
Emmaus, PA, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F25Jprimary
F25JLiquefaction, solidification or separation of gases or gaseous or liquefied gaseous mixtures by pressure and cold treatment or by bringing them into the supercritical state21%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests18%
B01DSeparation15%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry12%
Y02PClimate change mitigation technologies in the production or processing of goods9%
C01BNon-metallic elements6%
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact6%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application6%
Y02CCapture, storage, sequestration or disposal of greenhouse gases [ghg]6%
B04CApparatus using free vortex flow, e.g. cyclones3%
PatentTitleYear
8,808,425'Process and apparatus for producing hydrogen and carbon monoxide'20146,576,043'Recovery of nitrogen and light hydrocarbons from polyalkene purge gas'20035,810,910'Adsorbents for ozone recovery from gas mixtures'19985,305,610'Process and apparatus for producing nitrogen and oxygen'1994RE034038'Separating argon/oxygen mixtures using a structured packing'19925,122,174'Boiling process and a heat exchanger for use in the process'19924,836,836'Separating argon/oxygen mixtures using a structured packing'19894,813,988'Suitable distillation column packing for the cryogenic separation of air'19894,700,771'Multi-zone boiling process and apparatus'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–2014Patents assigned to AIR PROD & CHEM (8)· patent assignee history
1987–2014Based in Emmaus, PA, US· patent location history
2014Patents assigned to GENKIN EUGENE S (1)· patent assignee history
2014Patents assigned to LUDWIG KEITH ALAN (1)· patent assignee history
2014Patents assigned to PHAM HOANH NANG (1)· patent assignee history
2014Patents assigned to ZHANG XIAOGUANG (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| AIR PROD & CHEM | 8 | 1987–2014 |
| GENKIN EUGENE S | 1 | 2014 |
| LUDWIG KEITH ALANself | 1 | 2014 |
| PHAM HOANH NANG | 1 | 2014 |
| ZHANG XIAOGUANG | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Emmaus, Pennsylvania, US | 9 | 1987–2014 |