CAMPBELL JAMES W has a total of 13 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 machines, mechanical elements and furniture and games are BOGAR ISTVAN, FIBROC INSULATION COMPANY and JUDSON WHITCOMB L.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 12 | |
#2 | Canada | 1 |
# | Industry | |
---|---|---|
#1 | Machines | |
#2 | Mechanical elements | |
#3 | Furniture and games | |
#4 | Agriculture | |
#5 | Electrical machinery and energy | |
#6 | Foods and drinks | |
#7 | Environmental technology | |
#8 | Packaging and shipping | |
#9 | Transport |
# | Technology | |
---|---|---|
#1 | Unspecified technologies | |
#2 | Gearing | |
#3 | Animal care | |
#4 | Vehicles drawn by animals | |
#5 | Elevators and escalators | |
#6 | Physical training equipment | |
#7 | Combustion residues removal | |
#8 | Domestic washing | |
#9 | Electric switches | |
#10 | Fodder |
# | Name | Total Patents |
---|---|---|
#1 | Campbell James W | 13 |
Publication | Filing date | Title |
---|---|---|
US2012174867A1 | Wildlife feeding block | |
US2012152173A1 | Apparatus for feeding wildlife especially deer | |
US3341876A | Combination mop and bucket | |
US3101948A | Golf shot indicating device for golf shot practice ball | |
US2527298A | Baffled time delay mercury switch | |
US1182752A | Variable-speed gearing. | |
US1182751A | Variable-speed gearing. | |
US1133837A | Variable-speed gearing. | |
US817623A | Safety-gear for skips, cages, and the like. | |
US806320A | Case for phonograph-records. | |
US669073A | Rein-holder. | |
US638953A | Flue or chimney. | |
CA340502A | Merchandising carton |