Inventor

STEVENS TIMOTHY S

23 patents

⚠️ This page may combine multiple inventors who share the name “STEVENS TIMOTHY S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

STEVENS TIMOTHY S

DOW CHEMICAL CO

Ion analysis method and apparatus

High performance ion exchange composition

Liquid chromatographic method and apparatus with a packed tube membrane device for post-column derivatization/suppression reactions

High performance ion-exchange composition

Apparatus for membrane-permeation separations using segmented flow

High performance anion-exchange chromatographic packing composition consisting of low porosity synthetic resin gel particle substrate coated with liquid water-soluble aminated resin

Determining organic compounds using a membrane

Method for reagent addition to a flowing liquid carrier stream

Chromatographic apparatus for analysis of ionic species

High performance, cation-exchange chromatography on surface-sulfonated compositions

High performance analytical column for anion determination

High performance anion-exchange chromatographic packing composition

Analytical technique for quantitating acid/salt and base/salt samples for species concentration

Analytical method for determining acid/salt and base/salt species concentration in solution

Apparatus and method for the determination of water by liquid chromatography

Indirect-photometric chromatography done in and with a variable capacity weakly basic or acidic ion exchange column

Apparatus and method for membrane-permeation separations using segmented flow

BRITISH TELECOMM

Computer apparatus

Network access fault reporting

Video caching

STEVENS TIMOTHY S

Automatic media article composition using previously written and recorded media object relationship data

Media data encoding apparatus and method

LEE SCIENT INC

Chromatography columns with cast porous plugs and methods of fabricating same