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Inventor

Ernest M. Mattox

Inventor
Grand Rapids, MI, US

Overview

17→
Patents
1981–2020
Patent span
Human necessities
Primary field (CPC A)

Patents· 17 as inventor

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

A63Bprimary
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing85%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
A45FTravelling or camp equipment: sacks or packs carried on the body5%
PatentTitleYear
10,799,752Adjustable trap bar20208,814,758'Hand protector'20148,678,985'Balance training and exercise device'20147,614,986'Abdominal exercise device'20097,357,761'Universal exercise article'20086,652,431'Squat exercise hook harness'20035,879,274'Dumbbell assembly'19995,499,961'Kneeling-prone-kneeling exercise device'19965,261,866'Wheeled exercise device'19934,789,154'Neck exercise device'19884,699,376'Hip and knee joint exercising apparatus'19874,641,832'Wrist/ankle exercising apparatus'19874,569,519'Shoulder exercising apparatus'19864,563,004'Friction type isokinetic exercise mechanism'19864,505,474'Weighted elastomeric jumping device'19854,385,760'Isokinetic exerciser'19834,249,725'Exercise apparatus'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1993Patents assigned to MATTOX ERNEST M (5)· patent assignee history
1981–1999Based in Independence, MO, US· patent location history
1983Patents assigned to NEWMARK IND INC (1)· patent assignee history
1983–2014Based in Blue Springs, MO, US· patent location history
1985–1996Based in Grand Rapids, MI, US· patent location history
1986–1987Patents assigned to PORTABLE ISOKINETICS INC (3)· patent assignee history
1986–1987Based in Belmont, MI, US· patent location history
2008–2014Patents assigned to MATTOX E MICHAEL (3)· patent assignee history
2008–2014Based in Petoskey, MI, US· patent location history
2009–2020Patents assigned to MATTOX ERNEST MICHAEL (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MATTOX ERNEST Mself51981–1993
MATTOX E MICHAELself32008–2014
PORTABLE ISOKINETICS INC31986–1987
MATTOX ERNEST MICHAELself22009–2020
NEWMARK IND INC11983
Locations
LocationPatentsSpan
Grand Rapids, MI, US41985–1996
Belmont, MI, US41986–1987
Petoskey, MI, US32008–2014
Blue Springs, MO, US21983–2014
Independence, MO, US21981–1999