Inventor
Keith Langenwalter
Inventor
Portland, OR, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B26Bprimary
B26BHand-held cutting tools not otherwise provided for15%
A44BButtons, pins, buckles, slide fasteners, or the like8%
A45FTravelling or camp equipment: sacks or packs carried on the body8%
A61FFilters implantable into blood vessels8%
B25HWorkshop equipment, e.g. for marking-out work8%
B28BShaping clay or other ceramic compositions8%
B67BApplying closure members to bottles jars, or similar containers8%
F21LLighting devices or systems thereof, being portable or specially adapted for transportation8%
F21VFunctional features or details of lighting devices or systems thereof8%
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted8%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2008Patents assigned to LANGENWALTER KEITH ALLAN (1)· patent assignee history
2008–2021Based in Portland, OR, US· patent location history
2018–2020Patents assigned to FISKARS BRANDS INC (2)· patent assignee history
2018–2020Based in Ridgefield, WA, US· patent location history
2019Patents assigned to SMITH OPTICS INC (1)· patent assignee history
2021Patents assigned to SMITH SPORT OPTICS INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FISKARS BRANDS INC | 2 | 2018–2020 |
| LANGENWALTER KEITH ALLANself | 1 | 2008 |
| SMITH OPTICS INC | 1 | 2019 |
| SMITH SPORT OPTICS INC | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Portland, OR, US | 3 | 2008–2021 |
| Ridgefield, Washington, US | 2 | 2018–2020 |