DOUGLASS NAPOLEON B has a total of 17 patent applications. Its first patent ever was published in 1908. It filed its patents most often in United States and Canada. Its main competitors in its focus markets furniture and games, machines and civil engineering are SCARLESKI WILLIAM JOHN, PHILLIPS RAYMOND M and SHELBY WILLIAMS IND.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 15 | |
#2 | Canada | 2 |
# | Industry | |
---|---|---|
#1 | Furniture and games | |
#2 | Machines | |
#3 | Civil engineering | |
#4 | Machine tools |
# | Technology | |
---|---|---|
#1 | Chairs and beds | |
#2 | Unspecified technologies | |
#3 | Unspecified technologies | |
#4 | Indexing scheme relating to hinges | |
#5 | Hinges for doors or windows | |
#6 | Punching metal |
# | Name | Total Patents |
---|---|---|
#1 | Douglass Napoleon B | 17 |
Publication | Filing date | Title |
---|---|---|
US1732555A | Reversible door mounting | |
US1487218A | Folding bed | |
US1406727A | Method of forming hinge joints | |
US1344995A | Folding bed | |
CA194552A | Folding bed | |
US1256667A | Wall-bed. | |
US1349946A | Folding bed | |
US1259965A | Wall-bed. | |
US1295449A | Wall-bed spring-counterbalance. | |
US1056647A | Wall-bed. | |
CA144163A | Wall bed | |
US1180112A | Wall-bed. | |
US1053481A | Wall-bed. | |
US1044760A | Wall-bed. | |
US991771A | Wall-bed. | |
US1006068A | Combined reversible wall furniture and door. | |
US939482A | Wall or cabinet bed. |