Inventor

Margaret L. Hetfield

Inventor

Bristol, RI, US

Overview

37→

Patents

1991–2010

Patent span

LOC

Primary field

Patents· 37 as inventor

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

LOC26primary

LOC2645%

LOC1414%

G06KGraphical data reading10%

G06FElectric digital data processing7%

F21SNon-portable lighting devices3%

F21VFunctional features or details of lighting devices or systems thereof3%

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 emitted3%

G09FDisplaying3%

H05KPrinted circuits3%

LOC193%

PatentTitleYear

7,645,055'Luminaire optical assembly'2010 D0565230'Luminaire'2008 D0564696'Luminaire'2008 D0563590'Luminaire'2008 D0563025'Luminaire'2008 D0563021'Luminaire'2008 D0563024'Luminaire'2008 D0563023'Luminaire'2008 D0563022'Luminaire'2008 D0513439'Luminaire'2006 D0511222'Luminaire'2005 D0509616'Luminaire'2005 D0505221'Luminaire'2005 D0502565'Luminaire'2005 6,853,293'Wearable communication system'2005 6,311,896'Compact bar code scanner'2001 6,098,877'Interface and method for controlling an optical reader having a scanning module'2000 D0419548'Combined optical scanner and base'2000 5,979,764'Hand-held electronic apparatus with pivoting display'1999 D0414760'Scanner terminal'1999 D0414172'Scanner terminal'1999 D0389465'Portable terminal'1998 D0383496'Handheld clipboard'1997 D0371767'Notebook computer enclosure'1996 5,363,578'Identification panel for electronic equipment cabinet'1994 D0346370'Network multiplexor for an office environment'1994 D0344710'Electronic device module'1994 D0342523'Cover for wall mounted electronic equipment'1993 D0338653'Power supply module'1993 D0337761'Electronic device module'1993 D0336290'Enclosure for electronic module'1993 D0336081'Electronic device module'1993 D0336082'Electronic device module'1993 D0334733'Wall mounted power supply module'1993 5,162,980'Shielded printed circuit board housing for high density storage'1992 D0329847'Video display terminal'1992 D0313431'Electroluminiscence display panel'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1996Patents assigned to DIGITAL EQUIPMENT CORP (13)· patent assignee history

1992–1994Based in Arlington, MA, US· patent location history

1992Based in Belmont, MA, US· patent location history

1996Based in San Jose, CA, US· patent location history

1997Patents assigned to HEWLETT PACKARD CO (1)· patent assignee history

1997–2005Based in East Northport, NY, US· patent location history

1998Patents assigned to SYMBOL TECNOLOGIES INC (1)· patent assignee history

1999–2005Patents assigned to SYMBOL TECHNOLOGIES INC (7)· patent assignee history

2005–2010Patents assigned to GENLYTE THOMAS GROUP LLC (14)· patent assignee history

2005–2010Based in Bristol, RI, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
GENLYTE THOMAS GROUP LLC	14	2005–2010
DIGITAL EQUIPMENT CORP	13	1991–1996
SYMBOL TECHNOLOGIES INC	7	1999–2005
HEWLETT PACKARD CO	1	1997
SYMBOL TECNOLOGIES INC	1	1998

Locations

Location	Patents	Span
Bristol, RI, US	14	2005–2010
Arlington, Massachusetts, US	11	1992–1994
East Northport, New York, US	9	1997–2005
San Jose, California, US	1	1996
Belmont, Massachusetts, US	1	1992