LexDanaLexDanabeta
Inventor

Samuel F. Haworth

Inventor
Oak Creek, WI, US

Overview

4→
Patents
2016–2020
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 4 as inventor

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

E21Bprimary
E21BEarth or rock drilling43%
E02FDredging14%
E21CMining or quarrying14%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids14%
F16HGearing14%
PatentTitleYear
10,662,720Mast with rack assembly202010,597,956Bit change mechanism for a drill rig202010,132,130Combustor for heating of airflow on a drill rig20189,297,140'Rope shovel'2016

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2016–2020Patents assigned to HARNISCHFEGER TECH INC (4)· patent assignee history
2016–2020Based in Oak Creek, WI, US· patent location history
2018–2020Patents assigned to JOY GLOBAL SURFACE MINING INC (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HARNISCHFEGER TECH INC42016–2020
JOY GLOBAL SURFACE MINING INC32018–2020
Locations
LocationPatentsSpan
Oak Creek, WI, US42016–2020