WALKER EXTRACT AND CHEMICAL CO has a total of 14 patent applications. Its first patent ever was published in 1955. It filed its patents most often in Canada, United States and Switzerland. Its main competitors in its focus markets macromolecular chemistry and polymers, materials and metallurgy and civil engineering are NIPPON LATEX CHEM, CONTEKI DEV LTD and TAESAN ENG CO LTD.
# | Country | Total Patents | |
---|---|---|---|
#1 | Canada | 5 | |
#2 | United States | 3 | |
#3 | Switzerland | 2 | |
#4 | Germany | 2 | |
#5 | Denmark | 2 |
# | Industry | |
---|---|---|
#1 | Macromolecular chemistry and polymers | |
#2 | Materials and metallurgy | |
#3 | Civil engineering |
# | Technology | |
---|---|---|
#1 | Special macromolecular compounds | |
#2 | Building materials | |
#3 | Finishing work on buildings |
# | Name | Total Patents |
---|---|---|
#1 | Redfarn Cyril A | 5 |
#2 | Aubrey Redfarn Cyril | 3 |
#3 | Cyril Aubrey Redfarn | 2 |
#4 | Redfarn Cyril Aubrey | 2 |
Publication | Filing date | Title |
---|---|---|
US2860058A | Production of semi-ceramic materials | |
US2866773A | Production of inorganic polymeric substances | |
US2979484A | Manufacture of phenolic resins | |
CA568572A | Manufacture of phenolic resins | |
CA570067A | Production of semi-ceramic materials | |
CA629126A | Abrasive article and method of making same | |
CA646985A | Production of polymeric substances containing inorganic matter | |
CA610837A | Abrasive article and method of making same |