Alcoa Corp
Alcoa CorpActive Patents
0
Total Holdings
39
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| GB898069A | Method of relieving residual stresses in light metal articl… | Expired / Lapsed | 1959-12-15 | — | 0 | Details |
| US4704886A | Stretch-forming process | Expired / Lapsed | 1985-04-22 | 1987-11-10 | 7 | Details |
| US3524046A | Apparatus and method for piercing holes in elastomeric arti… | Expired / Lapsed | 1968-04-26 | 1970-08-11 | 0 | Details |
| US3019373A | Differential direct current responsive control system | Expired / Lapsed | 1959-01-02 | 1962-01-30 | 0 | Details |
| US2999671A | Handrail connection | Expired / Lapsed | 1959-03-17 | 1961-09-12 | 0 | Details |
| US2908073A | Method of bonding aluminous metal to dissimilar metal | Expired / Lapsed | 1957-06-07 | 1959-10-13 | 2 | Details |
| US2662034A | Method of impregnating an oxide coating on aluminum and res… | Expired / Lapsed | 1950-07-14 | 1953-12-08 | 2 | Details |
| US2659252A | Fabrication of light metals | Expired / Lapsed | 1952-05-09 | 1953-11-17 | 2 | Details |
| CA480412A | Method of casting | Expired / Lapsed | — | 1952-01-22 | 0 | Details |
| US2530669A | Extrusion apparatus | Expired / Lapsed | 1944-11-30 | 1950-11-21 | 0 | Details |
| US2510770A | Induction heating control mechanism | Expired / Lapsed | 1946-12-11 | 1950-06-06 | 0 | Details |
| US2429525A | Billet feeder | Expired / Lapsed | 1943-12-17 | 1947-10-21 | 0 | Details |
| US2426988A | Mold coating | Expired / Lapsed | 1942-11-13 | 1947-09-09 | 0 | Details |
| US2389443A | Coil handling apparatus | Expired / Lapsed | 1943-02-06 | 1945-11-20 | 0 | Details |
| US2378155A | Treatment of adsorbent alumina | Expired / Lapsed | 1943-03-24 | 1945-06-12 | 0 | Details |
| US2367317A | Closure | Expired / Lapsed | 1942-07-04 | 1945-01-16 | 0 | Details |
| US2322700A | Structure | Expired / Lapsed | 1940-05-18 | 1943-06-22 | 0 | Details |
| US2301027A | Method of casting | Expired / Lapsed | 1938-07-02 | 1942-11-03 | 0 | Details |
| US2243832A | Welding apparatus and method | Expired / Lapsed | 1938-06-16 | 1941-06-03 | 0 | Details |
| US2225292A | Work-handling mechanism | Expired / Lapsed | 1939-08-03 | 1940-12-17 | 0 | Details |
| US2156987A | Wrapper for foodstuffs | Expired / Lapsed | 1932-09-29 | 1939-05-02 | 0 | Details |
| US2151508A | Bottle capsule | Expired / Lapsed | 1936-03-03 | 1939-03-21 | 0 | Details |
| US2140610A | Method of making a shelf structure for refrigerators | Expired / Lapsed | 1935-11-07 | 1938-12-20 | 0 | Details |
| US2135766A | Method of producing metal grilles | Expired / Lapsed | 1935-02-07 | 1938-11-08 | 0 | Details |
| US2135193A | Extrusion | Expired / Lapsed | 1935-04-12 | 1938-11-01 | 0 | Details |
| US2092033A | Heat treatment of aluminous metals | Expired / Lapsed | 1936-10-01 | 1937-09-07 | 0 | Details |
| US2047237A | Extrusion | Expired / Lapsed | 1935-04-12 | 1936-07-14 | 0 | Details |
| US2008733A | Treatment of coatings | Expired / Lapsed | 1932-05-26 | 1935-07-23 | 0 | Details |
| US1974970A | Alloy | Expired / Lapsed | 1933-08-17 | 1934-09-25 | 0 | Details |
| US1973317A | Container | Expired / Lapsed | 1932-10-14 | 1934-09-11 | 0 | Details |
| US1955745A | Receptacle | Expired / Lapsed | 1932-02-19 | 1934-04-24 | 0 | Details |
| US1955468A | Electric conductor cable | Expired / Lapsed | 1930-02-26 | 1934-04-17 | 0 | Details |
| US1953201A | Aluminum hydrate of low water content and process of produc… | Expired / Lapsed | 1926-09-03 | 1934-04-03 | 0 | Details |
| US1937885A | Method of manufacturing fluoride materials | Expired / Lapsed | 1931-01-29 | 1933-12-05 | 0 | Details |
| US1871723A | Process for the recovery of cryolite | Expired / Lapsed | 1929-05-29 | 1932-08-16 | 0 | Details |
| US1776615A | Joint and method of making the same | Expired / Lapsed | 1928-12-12 | 1930-09-23 | 0 | Details |
| US1716943A | Aluminum-beryllium alloy and method of treatment | Expired / Lapsed | 1926-11-22 | 1929-06-11 | 0 | Details |
| US1663150A | Aluminum-base alloy | Expired / Lapsed | 1925-06-30 | 1928-03-20 | 0 | Details |
| US1661448A | Nonseizing article of aluminum and method of producing the … | Expired / Lapsed | 1923-04-24 | 1928-03-06 | 0 | Details |