HEATH FREDERICK has a total of 20 patent applications. Its first patent ever was published in 1913. It filed its patents most often in Canada, United States and Spain. Its main competitors in its focus markets civil engineering are TATSUMI KK, HERREZUELO DE LA SIERRA EDUARDO and GUIRAUDIE & AUFFEVE ETS.
# | Country | Total Patents | |
---|---|---|---|
#1 | Canada | 13 | |
#2 | United States | 3 | |
#3 | Spain | 2 | |
#4 | Switzerland | 1 | |
#5 | United Kingdom | 1 |
# | Industry | |
---|---|---|
#1 | Civil engineering |
# | Technology | |
---|---|---|
#1 | General building constructions |
# | Name | Total Patents |
---|---|---|
#1 | Heath Frederick | 18 |
#2 | Heath Frederick T | 1 |
Publication | Filing date | Title |
---|---|---|
GB121287A | Improvements in Hollow Wall Construction. | |
CA187208A | Tile | |
CA187602A | Lintel | |
CA177544A | Wall | |
US1294905A | Hollow corner-block. | |
US1244328A | Lintel. | |
US1215149A | Hollow-wall construction. | |
CA241791A | Pressure controlled valve | |
CA229810A | Fireproof hollow wall | |
CA226971A | Silo | |
CA243942A | Pressure controlled valve | |
CA228183A | Hollow wall | |
CA229640A | Pilaster construction | |
CA228184A | Hollow tile wall | |
CA228936A | Hollow wall and building block | |
CA244714A | Steam boiler plant | |
CA240364A | Valve |