Inventor
David E. Cowan
Inventor
Cornwall Bridge, CT, US
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E01Fprimary
E01FAdditional work, such as equipping roads or the construction of platforms, helicopter landing stages, signs, snow fences, or the like31%
LOC1615%
A45CPurses8%
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing8%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges8%
G09FDisplaying8%
LOC108%
LOC248%
LOC258%
PatentTitleYear
D0924405Portable oxygen device20219,609,931'Carrying case for a wig'20179,375,607'Exercise apparatus'2016D0746360'Sunglasses'2015D0694315'Sunglasses'20137,922,420'Barriers with kiss-offs'20117,588,387'Barriers with interlocking sides'2009D0533281'Barrier with interlocking sides'20066,769,207'Portable sign assembly'20046,182,600'Traffic channeling device'2001D0406543'Traffic channelizer'19995,421,668'Tread ballast or weight for temporary traffic control devices and posts'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995–2004Patents assigned to PLASTIC SAFETY SYSTEMS INC (4)· patent assignee history
1995Based in Cleveland Heights, OH, US· patent location history
1999–2004Based in Orange Village, OH, US· patent location history
2006–2011Patents assigned to WALL PRODUCTS LLC OFF (3)· patent assignee history
2006–2011Based in Cleveland, OH, US· patent location history
2013–2015Patents assigned to JUNGE GREGORY P (2)· patent assignee history
2013–2017Based in Cornwall Bridge, CT, US· patent location history
2017Patents assigned to ROSENBLATT ELI (1)· patent assignee history
2021Patents assigned to RAPID OXYGEN COMPANY INC (1)· patent assignee history
2021Based in Cornwall, NY, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PLASTIC SAFETY SYSTEMS INC | 4 | 1995–2004 |
| WALL PRODUCTS LLC OFF | 3 | 2006–2011 |
| JUNGE GREGORY P | 2 | 2013–2015 |
| RAPID OXYGEN COMPANY INC | 1 | 2021 |
| ROSENBLATT ELI | 1 | 2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Cornwall Bridge, CT, US | 4 | 2013–2017 |
| Cleveland, OH, US | 3 | 2006–2011 |
| Orange Village, OH, US | 3 | 1999–2004 |
| Cornwall, New York, US | 1 | 2021 |
| Cleveland Heights, OH, US | 1 | 1995 |