NAT SCREW AND MFG COMPANY has a total of 34 patent applications. Its first patent ever was published in 1921. It filed its patents most often in Canada and United States. Its main competitors in its focus markets machine tools, machines and electrical machinery and energy are BARTHOLOMAEUS RUDOLF, NAT ACME CO and PIPE MACHINERY COMPANY.
# | Country | Total Patents | |
---|---|---|---|
#1 | Canada | 25 | |
#2 | United States | 9 |
# | Industry | |
---|---|---|
#1 | Machine tools | |
#2 | Machines | |
#3 | Electrical machinery and energy | |
#4 | Packaging and shipping | |
#5 | Transport |
# | Technology | |
---|---|---|
#1 | Unspecified technologies | |
#2 | Thread cutting | |
#3 | Turning | |
#4 | Dynamo-electric machines | |
#5 | Vehicle tyre repairing | |
#6 | Transport or storage devices | |
#7 | Electric switches | |
#8 | Accessories for machine tools | |
#9 | Lighting device details |
# | Name | Total Patents |
---|---|---|
#1 | Steinfurth Louis | 5 |
#2 | Mortus Benjamin H | 3 |
#3 | Hopkins Howard L | 3 |
#4 | Hodell Frederick G | 3 |
#5 | Laisy Rudyard E | 3 |
#6 | Erdman Harvey C | 3 |
#7 | Hatherell George A | 2 |
#8 | Frantz John K | 2 |
#9 | Bartmess Meigs W | 2 |
#10 | Money Glenn L | 1 |
Publication | Filing date | Title |
---|---|---|
US2969553A | Multiple spindle machine tool apparatus with improved work holding chuck means | |
US2486561A | Buckle for emergency tire chains | |
US1685319A | Metal-working machine | |
US1692275A | Hopper feed for metal-working machines | |
US1668787A | Automatic feed for metal-working machines | |
US1651486A | Electric switch | |
US1530975A | Lamp fixture | |
US1476790A | Centrifugally-operated circuit-controlling device | |
US1530974A | Nut-castellating machine | |
CA796507A | Blind fastener | |
CA373061A | Nut tapping machine | |
CA527972A | Screw slotting machine | |
CA264175A | Nut castellating machine | |
CA598272A | Countersunk flexible head threaded fastener | |
CA513968A | Screw | |
CA501319A | Blank feeding apparatus | |
CA286131A | Metal working machine | |
CA522911A | Blank sizing and pointing machine | |
CA501318A | Slotting machine | |
CA741986A | Blind fastener |