DEMMLER HENRY L has a total of 13 patent applications. Its first patent ever was published in 1907. It filed its patents most often in United States and Canada. Its main competitors in its focus markets materials and metallurgy, engines, pumps and turbines and civil engineering are MADONO OSAMU, BEREZIN NIKOLAJ A and CHIZHOU HUAXING TAINQI PREC MACHINERY CASTING CO LTD.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 10 | |
#2 | Canada | 3 |
# | Industry | |
---|---|---|
#1 | Materials and metallurgy | |
#2 | Engines, pumps and turbines | |
#3 | Civil engineering |
# | Technology | |
---|---|---|
#1 | Foundry moulding | |
#2 | Foundations and excavations | |
#3 | Cyclically operating valves |
# | Name | Total Patents |
---|---|---|
#1 | Demmler Henry L | 13 |
Publication | Filing date | Title |
---|---|---|
US2126097A | Means for venting core boxes | |
US1822205A | Core booking apparatus | |
US1480750A | Method of and machine for making molds | |
US1480749A | Molding machine | |
US1480748A | Molding apparatus | |
US1480747A | Means for venting core boxes | |
US1560145A | Molding machine | |
CA141592A | Valve | |
US1042094A | Automatic valve mechanism for bumping-machines. | |
US910651A | Molding apparatus. | |
US1045956A | Bumping-machine. | |
CA248602A | Method for making moulds and cores | |
CA294216A | Core booking apparatus |