BARTLETT HAYWARD CO has a total of 105 patent applications. Its first patent ever was published in 1911. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets chemical engineering, mechanical elements and machines are LPD TECHNOLOGIES INC, ORTNER HEINRICH and SLICK CORP.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 80 | |
#2 | Canada | 11 | |
#3 | United Kingdom | 6 | |
#4 | Germany | 4 | |
#5 | France | 4 |
# | Industry | |
---|---|---|
#1 | Chemical engineering | |
#2 | Mechanical elements | |
#3 | Machines | |
#4 | Basic materials chemistry | |
#5 | Machine tools | |
#6 | Packaging and shipping |
# | Technology | |
---|---|---|
#1 | Separation | |
#2 | Gas holders | |
#3 | Unspecified technologies | |
#4 | Producer gas production | |
#5 | Pistons and sealings | |
#6 | Clutches and brakes | |
#7 | Metal-working | |
#8 | Cyclones | |
#9 | Gas, coke and tar production | |
#10 | Containers for goods storage |
# | Name | Total Patents |
---|---|---|
#1 | Wagner Frederick H | 26 |
#2 | Kuehn Paul M | 11 |
#3 | Santos John R L | 8 |
#4 | Morton Allen W | 6 |
#5 | Kennedy James S | 5 |
#6 | Gustave Fast | 4 |
#7 | Wagner Frederick Henry | 3 |
#8 | Meyer Henry C A | 3 |
#9 | Henry Wagner Frederick | 2 |
#10 | Bruce Howard | 2 |
Publication | Filing date | Title |
---|---|---|
GB452090A | Apparatus for and method of expanding pistons | |
US2041355A | Apparatus for expanding pistons | |
GB456015A | Improvements in piston rings | |
US2054596A | Carton | |
US2035435A | Packing ring | |
US2045503A | Dust collector | |
US2032020A | Method of expanding pistons | |
US2006902A | Packing ring | |
US2045478A | Tank | |
US2018412A | Expander for pistons | |
US2005305A | Dust collector | |
US2006365A | Packing ring | |
US1980499A | Dust quencher for water gas apparatus and the like | |
US1864924A | Waterless gas holder | |
US1870351A | Dust condenser | |
US1847179A | Recovery of metallic wastes from gas-washers for metallurgical furnaces | |
US1876002A | Centrifugal dry-dust arrester | |
US1870153A | Flexible shaft coupling | |
US1812042A | Continuous filter | |
US1743171A | Centrifugal dust arrester |