VIRTUE DENNIS E has a total of 11 patent applications. Its first patent ever was published in 1898. It filed its patents most often in United States and Canada. Its main competitors in its focus markets chemical engineering, machines and thermal processes are SVENSKA THORN AB, JENSEN AAGE and GLOUCESTER CO INC.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 9 | |
#2 | Canada | 2 |
# | Industry | |
---|---|---|
#1 | Chemical engineering | |
#2 | Machines | |
#3 | Thermal processes | |
#4 | Agriculture | |
#5 | Electrical machinery and energy | |
#6 | Engines, pumps and turbines | |
#7 | Civil engineering |
# | Name | Total Patents |
---|---|---|
#1 | Virtue Dennis E | 11 |
#2 | Deeg Martin | 1 |
#3 | Hagedorn George A | 1 |
Publication | Filing date | Title |
---|---|---|
US1363445A | Ensilage-cutter | |
US1046908A | Cream-ripener. | |
US1093898A | Silo. | |
US1030356A | Combined churn and butter-worker. | |
US979610A | Combined churn and butter-worker. | |
CA114001A | Churn and butter worker | |
US861561A | Combined churn and butter-worker. | |
US784715A | Rotary pump. | |
US686369A | Cream-tempering, churning, and butter-making machine. | |
US634074A | Combined churn and butter-worker. | |
CA221942A | Ensilage cutter |