CROWN UNLIMITED MACH INC has a total of 14 patent applications. Its first patent ever was published in 1987. It filed its patents most often in United States, Canada and China. Its main competitors in its focus markets machine tools and machines are SURINA MICHAEL, JOHN HUGO and SA LI CO SNC.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 6 | |
#2 | Canada | 2 | |
#3 | China | 1 | |
#4 | EPO (European Patent Office) | 1 | |
#5 | United Kingdom | 1 | |
#6 | Japan | 1 | |
#7 | Mexico | 1 | |
#8 | WIPO (World Intellectual Property Organization) | 1 |
# | Industry | |
---|---|---|
#1 | Machine tools | |
#2 | Machines |
# | Technology | |
---|---|---|
#1 | Unspecified technologies | |
#2 | Sawing | |
#3 | Perforating | |
#4 | Punching metal | |
#5 | Cutting | |
#6 | Making metal sheets |
# | Name | Total Patents |
---|---|---|
#1 | Stroup Steven L | 7 |
#2 | Stroup Sr Steven L | 2 |
#3 | Stroup Ii Steven L | 2 |
#4 | Stroup Steven L Sr | 2 |
#5 | Suteiibun Eru Sutoruupu Shinia | 1 |
#6 | Vanderlaan Fred J | 1 |
#7 | Stroup Jr Steven L | 1 |
Publication | Filing date | Title |
---|---|---|
WO9415743A1 | Method and apparatus for separating tubing | |
US5450668A | Method and apparatus for separating tubing | |
US5472126A | Tube slicing technique | |
US5143268A | Flat tube cutting techniques | |
US4839950A | Method for making a tube and fin heat exchanger | |
US4780955A | Apparatus for making a tube and fin heat exchanger | |
US4771536A | Expansion rod mounting structure |