Inventor
James L. Child, Jr.
Inventor
Findlay, OH, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F16Lprimary
F16LPipes20%
B29CShaping or joining of plastics15%
B29DProducing particular articles from plastics or from substances in a plastic state15%
B29LIndexing scheme associated with subclass b29c, relating to particular articles15%
E02BHydraulic engineering15%
E02FDredging5%
E03FSewers5%
H02GInstallation of electric cables or lines, or of combined optical and electric cables or lines5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
PatentTitleYear
4,523,613'Multi-layered corrugated conduit with \"black-eye\" like apertures'19854,374,079'Method and apparatus for manufacturing expanded and layered semiround plastic tubings'19834,360,042'Arched conduit with improved corrugations'19824,245,924'Arch conduit'19814,179,227'Dynamic plow assembly and method of operating same'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–1985Patents assigned to HANCOR INC (5)· patent assignee history
1979–1985Based in Findlay, OH, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HANCOR INC | 5 | 1979–1985 |
Locations
| Location | Patents | Span |
|---|---|---|
| Findlay, OH, US | 5 | 1979–1985 |