J E PORTER COMPANY has a total of 20 patent applications. Its first patent ever was published in 1904. It filed its patents most often in United States. Its main competitors in its focus markets civil engineering, packaging and shipping and machines are HUNT HELM FERRIS & CO, ALLITH PROUTY COMPANY and JAYBEE MFG CORP.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 20 |
# | Industry | |
---|---|---|
#1 | Civil engineering | |
#2 | Packaging and shipping | |
#3 | Machines | |
#4 | Agriculture | |
#5 | Transport |
# | Technology | |
---|---|---|
#1 | Hinges for doors or windows | |
#2 | Unspecified technologies | |
#3 | Cranes | |
#4 | Animal care | |
#5 | Indexing scheme relating to hinges | |
#6 | Transport or storage devices | |
#7 | Machines for making railways | |
#8 | Railway systems |
# | Name | Total Patents |
---|---|---|
#1 | Jacobs William F | 11 |
#2 | Yentzer Francis M | 2 |
#3 | Burkholder John H | 2 |
#4 | Jordan Burton S | 2 |
#5 | Buckingham Roswell H | 2 |
#6 | Yentzer George W | 1 |
Publication | Filing date | Title |
---|---|---|
US1328523A | Overhead track | |
US1384763A | Door-hanger | |
US1205153A | Lock for cattle-stanchions. | |
US1199185A | Barn-door track. | |
US1159388A | Hay-carrier. | |
US1134255A | Cattle-stanchion. | |
US1090541A | Barn-door track. | |
US1090540A | Barn-door track. | |
US1079734A | Barn-door-hanger track. | |
US1080065A | Cattle-stanchion. | |
US1107524A | Cattle-stanchion. | |
US1106512A | Hay-carrier. | |
US1053399A | Sliding-door hanger. | |
US988573A | Cross-draft hay-carrier. | |
US963975A | Barn-door hanger. | |
US981273A | Switch-track for hay and other similar carriers. | |
US981272A | Feed and litter carrier. | |
US895156A | Door-hanger. | |
US795336A | Hay-carrier. | |
US777465A | Hay-carrier. |