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Veolia WTS Systems USA Inc

Veolia WTS
Active Patents
0
Total Holdings
16

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US3887499A Cation exchange membranes having carboxylic and sulfonic ac… Expired / Lapsed 1973-08-23 1975-06-03 2 Details
US3562139A Cationic-anionic ion-exchange membrane Expired / Lapsed 1968-08-05 1971-02-09 0 Details
US3520803A Membrane fluid separation apparatus and process Expired / Lapsed 1968-12-24 1970-07-21 0 Details
US3412006A Ion-exchange membranes Expired / Lapsed 1965-01-11 1968-11-19 0 Details
US3398091A Membrane separation apparatus and process Expired / Lapsed 1966-08-09 1968-08-20 0 Details
US3356607A Reinforced ion-exchange membranes Expired / Lapsed 1964-07-22 1967-12-05 2 Details
US3152013A Fuel cell Expired / Lapsed 1960-05-17 1964-10-06 2 Details
US2854792A Method and apparatus for propagating algae culture Expired / Lapsed 1956-09-20 1958-10-07 2 Details
US2848403A Process for electrodialyzing liquids Expired / Lapsed 1954-05-06 1958-08-19 2 Details
US2741595A Construction of cells for electrodialysis Expired / Lapsed 1952-04-24 1956-04-10 2 Details
US2731408A Electrically conductive membranes and the like comprising c… Expired / Lapsed 1952-01-25 1956-01-17 2 Details
US2730768A Method of manufacturing electrically conductive membranes a… Expired / Lapsed 1951-12-05 1956-01-17 2 Details
US2731411A Electrically conductive membranes and the like comprising t… Expired / Lapsed 1951-12-05 1956-01-17 2 Details
US2708658A Apparatus for removing electrolytes from solutions Expired / Lapsed 1952-07-18 1955-05-17 2 Details
US2636851A Ion-exchange materials and method of making and using the s… Expired / Lapsed 1949-07-09 1953-04-28 4 Details
US2589613A Ion controller Expired / Lapsed 1950-06-19 1952-03-18 0 Details