Inventor
John Blackwood
Inventor
Union, NJ, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
D05Bprimary
D05BSewing42%
B21FWorking or processing of metal wire8%
B22DCasting of metals8%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges8%
G06FElectric digital data processing8%
G06NComputing arrangements based on specific computational models8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
11,003,997Machine learning modeling using social graph signals20215,071,107'Metallurgical tundish with filter'19914,895,090'Lost motion compensation for sewing machine needle vibrating gate'19904,735,162'Device for indicating by illumination the selected stitch pattern on a sewing machine'19884,499,839'Reverse feed controlling mechanism for a sewing machine'19854,408,553'Low torque direct dialing pattern selection mechanism'19834,204,493'Sewing machine bed extension latch'19804,018,333'Metal fastener sticks and process of preparing same by curing polymeric binder for said under conditions of U.V. irradiation'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977Patents assigned to STEPAN CHEMICAL CO (1)· patent assignee history
1977Based in Melrose, MA, US· patent location history
1980–1985Patents assigned to SINGER CO (3)· patent assignee history
1980–1990Based in Union, NJ, US· patent location history
1988–1990Patents assigned to SSMC INC (2)· patent assignee history
1991Patents assigned to BETHLEHEM STEEL CORP (1)· patent assignee history
1991Based in Center Valley, PA, US· patent location history
2021Patents assigned to SNAP INC (1)· patent assignee history
2021Based in Los Angeles, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SINGER CO | 3 | 1980–1985 |
| SSMC INC | 2 | 1988–1990 |
| BETHLEHEM STEEL CORP | 1 | 1991 |
| SNAP INC | 1 | 2021 |
| STEPAN CHEMICAL CO | 1 | 1977 |
Locations
| Location | Patents | Span |
|---|---|---|
| Union, New Jersey, US | 5 | 1980–1990 |
| Los Angeles, California, US | 1 | 2021 |
| Center Valley, Pennsylvania, US | 1 | 1991 |
| Melrose, Massachusetts, US | 1 | 1977 |