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Inventor

J. David Pratt

Inventor
Sullivan, IL, US

Overview

7→
Patents
1991–2008
Patent span
Performing operations
Primary field (CPC B)

Patents· 7 as inventor

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

B60Kprimary
B60KArrangement or mounting of propulsion units or of transmissions in vehicles23%
F16HGearing23%
B60YIndexing scheme relating to aspects cross-cutting vehicle technology15%
F04BPositive-displacement machines for liquids15%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding8%
G01BMeasuring length, thickness or similar linear dimensions8%
G01CMeasuring distances, levels or bearings8%
PatentTitleYear
7,328,576'Zero turn transaxle'20087,225,617'Bypass mechanism for a hydraulic drive apparatus'20077,047,736'Zero turn transaxle'20066,843,056'Zero turn transaxle'20055,307,712'Tool for installing and removing filters'1994D0333793'Level'19935,014,441'Angle measuring apparatus'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1994Patents assigned to PRATT JERRY D (3)· patent assignee history
1991–1994Based in Dallas, TX, US· patent location history
2005–2008Patents assigned to HYDRO GEAR LTD PARTNERSHIP (4)· patent assignee history
2005–2008Based in Sullivan, IL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HYDRO GEAR LTD PARTNERSHIP42005–2008
PRATT JERRY Dself31991–1994
Locations
LocationPatentsSpan
Sullivan, Illinois, US42005–2008
Dallas, Texas, US31991–1994