ENTERRA PATCO OILFIELD PRODUCT has a total of 13 patent applications. Its first patent ever was published in 1993. It filed its patents most often in Canada and United States. Its main competitors in its focus markets civil engineering are SAFEKICK AMERICAS LLC, JIANGSU JINFENG PETROLEUM MACHINERY MANUFACTURE CO LTD and RAILHEAD UNDERGROUND PRODUCTS.
# | Country | Total Patents | |
---|---|---|---|
#1 | Canada | 9 | |
#2 | United States | 4 |
# | Industry | |
---|---|---|
#1 | Civil engineering |
# | Technology | |
---|---|---|
#1 | Earth drilling |
# | Name | Total Patents |
---|---|---|
#1 | O'Hair Dan E | 6 |
#2 | Bertagnolli John T | 3 |
#3 | Squires Andrew | 3 |
#4 | Sable Donald E Ii | 1 |
#5 | Sable Ii Donald E | 1 |
#6 | Nguyen Dzung | 1 |
#7 | Sudol Tad A | 1 |
#8 | Andrews John | 1 |
Publication | Filing date | Title |
---|---|---|
CA2160396A1 | Rod guide test apparatus and method | |
CA2160400A1 | Well rod, centralizer and centralizer stop interfaces with wear reducing surface | |
CA2151179A1 | Well Rod Centralizer/Centralizer Stop Interface with Wear Reducing Surface | |
CA2216300A1 | Rod guide apparatus and method | |
CA2139958A1 | Rod guide with wear gauge | |
US5487426A | Rod guide with removable vanes | |
US5452760A | Well pump tubing scrapers | |
US5494104A | Snap-on rod guide | |
CA2145908A1 | Rod guide with enhanced erodable volume | |
CA2091547A1 | Centralizer |