ROYER FOUNDRY & MACHINE CO has a total of 13 patent applications. Its first patent ever was published in 1922. It filed its patents most often in United States, Germany and France. Its main competitors in its focus markets materials and metallurgy, machines and packaging and shipping are ROYER FOUNDRY AND MACHINE COMP, NICHOLLS WILLIAM H and DEPENDABLE FORDATH INC.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 10 | |
#2 | Germany | 1 | |
#3 | France | 1 | |
#4 | United Kingdom | 1 |
# | Industry | |
---|---|---|
#1 | Materials and metallurgy | |
#2 | Machines | |
#3 | Packaging and shipping | |
#4 | Chemical engineering |
# | Technology | |
---|---|---|
#1 | Foundry moulding | |
#2 | Unspecified technologies | |
#3 | Packaging | |
#4 | Separating solids | |
#5 | Mixing |
# | Name | Total Patents |
---|---|---|
#1 | Royer George F | 6 |
#2 | Broersma Robert J | 3 |
#3 | Suits Scott O | 1 |
#4 | Cooper Rutherford L | 1 |
Publication | Filing date | Title |
---|---|---|
US3554499A | Sand aerating device | |
US3455084A | Nursery stock packing device | |
US3450036A | Half shell | |
US3469366A | Packaging device having a fixed center,sliding split cover | |
US2020800A | Screening apparatus | |
US1729361A | Apparatus for preparing molder's sand | |
US1694356A | Sand collecting and treating machine | |
US1713449A | Sand separating and blending means | |
US1559916A | Separator for granular material | |
US1559915A | Method of and apparatus for separating and blending molders' sand |