Inventor

David P. Keffeler

Inventor

Omaha, NE, US

Overview

9→

Patents

2006–2021

Patent span

Performing operations

Primary field (CPC B)

Patents· 9 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B65Dprimary

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers22%

B60BVehicle wheels11%

B60YIndexing scheme relating to aspects cross-cutting vehicle technology11%

B61CLocomotives11%

F16JPistons11%

A61JContainers specially adapted for medical or pharmaceutical purposes6%

B25HWorkshop equipment, e.g. for marking-out work6%

G01BMeasuring length, thickness or similar linear dimensions6%

G07FCoin-freed or like apparatus6%

H02GInstallation of electric cables or lines, or of combined optical and electric cables or lines6%

PatentTitleYear

10,907,737Locomotive sanding system2021 10,549,419Wire cutback template2020 10,435,038Locomotive sanding system2019 7,793,785'Medication dispenser'2010 D0615208'Medication cart'2010 7,395,929'Cover assembly for a medication dispenser'2008 7,334,699'Filler assembly for medication dispenser'2008 7,267,228'Cover assembly for a medication dispenser'2007 7,097,037'Cover assembly for a medication dispenser'2006

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2006–2021Patents assigned to KEFFELER DAVID P (9)· patent assignee history

2006–2021Patents assigned to KEFFELER MARK G (9)· patent assignee history

2006–2021Based in Omaha, NE, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KEFFELER DAVID Pself	9	2006–2021
KEFFELER MARK G	9	2006–2021

Locations

Location	Patents	Span
Omaha, NE, US	9	2006–2021