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Inventor

John D. Hartman

Inventor
Chicago, IL, US

Overview

19→
Patents
1994–2016
Patent span
LOC
Primary field

Patents· 19 as inventor

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

LOC23primary
LOC2339%
LOC1422%
LOC0917%
A61GTransport, personal conveyances, or accommodation specially adapted for patients or disabled persons11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
PatentTitleYear
D0747789'Air treatment system'2016D0739512'Air treatment system'2015D0725485'Device for applying a formulation to skin'2015D0725486'Device for applying a formulation to skin'2015D0702563'Device for applying a formulation to skin'20148,438,675'Devices and methods for body elevation'20138,056,158'Devices and methods for body elevation'2011D0582529'Toilet assembly'2008D0553234'Ceiling exhaust fan'2007D0553236'Ceiling exhaust fan'2007D0553235'Ceiling exhaust fan'2007D0553237'Ceiling exhaust fan'2007D0463784'Communication device'2002D0443603'Headset'2001D0436948'Accessory adapter for radio communication device'2001D0432528'Speakerphone accessory'2000D0367004'Fluid dispenser'1996D0358167'Writing instrument'1995D0345663'Earplug dispenser'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994–2016Based in Chicago, IL, US· patent location history
2000–2002Patents assigned to MOTOROLA INC (4)· patent assignee history
2007Patents assigned to J F MESKILL ENTPR LLC (4)· patent assignee history
2008–2013Patents assigned to LIFTSEAT CORP (3)· patent assignee history
2011–2014Patents assigned to HARTMAN JOHN DAVID (3)· patent assignee history
2014–2015Patents assigned to WELLMARK INTERNAT (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
J F MESKILL ENTPR LLC42007
MOTOROLA INC42000–2002
HARTMAN JOHN DAVIDself32011–2014
LIFTSEAT CORP32008–2013
WELLMARK INTERNAT32014–2015
Locations
LocationPatentsSpan
Chicago, Illinois, US191994–2016