HELTZEL ROBERT E has a total of 11 patent applications. Its first patent ever was published in 1949. It filed its patents most often in United States and Canada. Its main competitors in its focus markets machines, packaging and shipping and civil engineering are FOOTE COMPANY INC, JAEGER MACHINE CO and JOSEPH TEMPERLEY.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 8 | |
#2 | Canada | 3 |
# | Industry | |
---|---|---|
#1 | Machines | |
#2 | Packaging and shipping | |
#3 | Civil engineering | |
#4 | Measurement |
# | Technology | |
---|---|---|
#1 | Construction of roads | |
#2 | Preparing clay | |
#3 | Unspecified technologies | |
#4 | Unspecified technologies | |
#5 | Containers for goods storage | |
#6 | Shaping clay | |
#7 | Packaging | |
#8 | Weighing |
# | Name | Total Patents |
---|---|---|
#1 | Heltzel Robert E | 11 |
Publication | Filing date | Title |
---|---|---|
CA1005623A | Concrete product method and molding machine for producing same | |
US3317194A | Concrete mixer | |
US3144700A | Road form and incorporated load transfer unit | |
US3064832A | Mobile batching plant | |
US3034613A | Slide lock for concrete road forms | |
US2754996A | Automatic batch dispensing apparatus | |
US2663466A | Operating mechanism for compressible sealing closures for hoppers | |
US2638254A | Compression sealing gate for storage bins and hoppers | |
US2548214A | Dowel attachment and adjusting lock for forms | |
CA688122A | Mobile batching plant | |
CA625909A | Slide lock for concrete road forms |