Inventor

David J. Fitzgerald

Inventor

Hayward, CA, US

Overview

27→

Patents

1982–2019

Patent span

Performing operations

Primary field (CPC B)

Patents· 27 as inventor

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

B60Bprimary

B60BVehicle wheels13%

G11BInformation storage based on relative movement between record carrier and transducer13%

LOC1210%

B62BHand-propelled vehicles, e.g. hand carts or perambulators5%

F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges5%

G01RMeasuring electric variables5%

A47DFurniture specially adapted for children3%

A61FFilters implantable into blood vessels3%

A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing3%

A63HToys, e.g. tops, dolls, hoops or building blocks3%

PatentTitleYear

10,489,725Systems and methods for controlling business processes through information technology operational controls2019 10,489,600Access path redirection for encrypted files2019 9,527,000'Crib mobile and mounting structure therefor'2016 9,437,219'Magnetoresistive reader for two-dimensional magnetic recording'2016 9,431,050'Preamplifier common-mode noise rejection for two-dimensional magnetic recording'2016 9,343,082'Systems and methods for detecting head contact'2016 8,347,145'System and method for providing a mission based management system'2013 8,302,585'Snowball forming and launching device'2012 7,938,705'Adjustable flex waterboard stringer'2011 7,724,460'Magneto-resistive head resistance sensor'2010 7,552,930'Snow sled'2009 D0562929'Water dispensing device'2008 7,218,125'Apparatus and method for performing a four-point voltage measurement for an integrated circuit'2007 7,084,648'Semiconductor testing'2006 D0509168'Sports board for supporting a rider'2005 D0505644'Sports board for carrying a rider'2005 6,880,834'Bi-directional snow sled with steering/braking levers'2005 D0489025'Sports board with bottom rails'2004 6,667,842'Negative feedback impedance matched preamplifier'2003 D0476266'Sports board for supporting a rider'2003 5,542,750'Wheel cover assembly retainer ring'1996 5,380,070'Lug nut covers'1995 5,167,440'Wheel cover mounting for heavy vehicles'1992 5,091,240'Laminate incorporating hot melt and water based adhesives'1992 5,052,758'Washer mechanism for a wheel cover'1991 4,974,909'Vehicle wheel cover attachment'1990 4,355,969'Electrically charged, emulsified carrier-fuel particle combustion'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1995Patents assigned to WHEEL MASTERS INC (3)· patent assignee history

1991–1996Based in San Leandro, CA, US· patent location history

2003–2012Patents assigned to WHAM O INC (8)· patent assignee history

2003–2010Patents assigned to AGERE SYSTEMS INC (4)· patent assignee history

2003–2016Based in Hayward, CA, US· patent location history

2003–2016Based in Inver Grove Heights, MN, US· patent location history

2012–2016Patents assigned to FITZGERALD DAVID (2)· patent assignee history

2016Patents assigned to AVAGO TECHNOLOGIES GENERAL IP (3)· patent assignee history

2019Based in Glenmoore, PA, US· patent location history

2019Based in Rowlett, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
WHAM O INC	8	2003–2012
AGERE SYSTEMS INC	4	2003–2010
AVAGO TECHNOLOGIES GENERAL IP	3	2016
WHEEL MASTERS INC	3	1990–1995
FITZGERALD DAVIDself	2	2012–2016

Locations

Location	Patents	Span
Hayward, California, US	9	2003–2016
Inver Grove Heights, Minnesota, US	7	2003–2016
San Leandro, California, US	4	1991–1996
Glenmoore, Pennsylvania, US	1	2019
Rowlett, Texas, US	1	2019