SERGEANT HENRY C has a total of 11 patent applications. Its first patent ever was published in 1903. It filed its patents most often in Canada and United States. Its main competitors in its focus markets civil engineering are PARTICLE DRILLING TECHNOLOGIES, SPS AFOS GROUP LTD and NIPPON BEESU KK.
# | Country | Total Patents | |
---|---|---|---|
#1 | Canada | 10 | |
#2 | United States | 1 |
# | Industry | |
---|---|---|
#1 | Civil engineering |
# | Technology | |
---|---|---|
#1 | Earth drilling |
# | Name | Total Patents |
---|---|---|
#1 | Sergeant Henry C | 11 |
Publication | Filing date | Title |
---|---|---|
US777311A | Drill. | |
CA32137A | Channelling machine | |
CA30883A | Rock drill | |
CA32206A | Automatic valve for steam and air engines | |
CA19244A | Rock drill | |
CA16158A | Improvements on rock drills | |
CA32232A | Air compressor | |
CA8352A | Improvements on machines for making paving-blocks | |
CA8357A | Improvements on rock drills | |
CA13060A | Improvements on air compressing engines | |
CA16159A | Improvements on rock drills |