Patent Explorer

Browse, filter, and analyze 331 patents across global jurisdictions.

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Patent Number Title Assignee Status Filing Date Grant Date Expires Remaining Claims Actions
GB550837A Process for the preparation of condensation products of hydroxyacetic acids EIDP Inc Expired / Lapsed 1941-07-23 — 1961-07-23 0.0 yrs 0
GB660398A Process for obtaining laminated products EIDP Inc Expired / Lapsed 1949-03-28 — 1969-03-28 0.0 yrs 0
GB712950A A process for melt spinning polyethylene terephthalate fibres and yarns EIDP Inc Expired / Lapsed 1952-06-18 — 1972-06-18 0.0 yrs 0
GB595290A Adhesive compositions EIDP Inc Expired / Lapsed 1945-07-02 — 1965-07-02 0.0 yrs 0
DE1132220B Glaze composition containing metal particles for the production of electrical resistances and electrical resistance EIDP Inc Expired / Lapsed 1959-10-28 — 1979-10-28 0.0 yrs 0
US4612237A Hydraulically entangled PTFE/glass filter felt EIDP Inc Expired / Lapsed 1985-12-13 1986-09-16 2005-12-13 0.0 yrs 32
US3886066A Tannin treatment for non-porous semipermeable membranes EIDP Inc Expired / Lapsed 1972-11-06 1975-05-27 1992-11-06 0.0 yrs 20
US3832830A Permeation separation device EIDP Inc Expired / Lapsed 1972-09-18 1974-09-03 1992-09-18 0.0 yrs 17
US3821051A Process for bonding rib structures of thermoplastic resin EIDP Inc Expired / Lapsed 1970-12-16 1974-06-28 1990-12-16 0.0 yrs 6
US3808303A Ether treatment of nitrogen-containing polymer membranes EIDP Inc Expired / Lapsed 1971-12-30 1974-04-30 1991-12-30 0.0 yrs 0
US3801401A Apparatus for making convolute wound structures EIDP Inc Expired / Lapsed 1971-09-24 1974-04-02 1991-09-24 0.0 yrs 32
US3773919A Polylactide-drug mixtures EIDP Inc Expired / Lapsed 1970-10-08 1973-11-20 1990-10-08 0.0 yrs 0
US3773449A Apparatus for producing continuous round jacketed lightguides EIDP Inc Expired / Lapsed 1971-09-29 1973-11-20 1991-09-29 0.0 yrs 3
US3733309A Biaxially oriented poly(ethylene terephthalate)bottle EIDP Inc Expired / Lapsed 1970-11-30 1973-05-15 1990-11-30 0.0 yrs 0
US3702658A Permeation separation apparatus EIDP Inc Expired / Lapsed 1971-02-24 1972-11-14 1991-02-24 0.0 yrs 0
US3663266A Moisture responsive synthetic microporous sheet material EIDP Inc Expired / Lapsed 1970-05-21 1972-05-16 1990-05-21 0.0 yrs 12
US3616928A Permeation separation device for separating fluids EIDP Inc Expired / Lapsed 1969-10-02 1971-11-02 1989-10-02 0.0 yrs 2
US3593074A Apparatus and process EIDP Inc Expired / Lapsed 1969-12-22 1971-07-13 1989-12-22 0.0 yrs 4
US3581343A Tubing die extrausion coating apparatus EIDP Inc Expired / Lapsed 1968-10-25 1971-06-01 1988-10-25 0.0 yrs 0
US3565979A Flash spinning EIDP Inc Expired / Lapsed 1968-09-18 1971-02-23 1988-09-18 0.0 yrs 0
Showing 1 to 20 of 331 patents
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