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Inventor

David A. Dornbush

Inventor
Prior Lake, MN, US

Overview

27→
Patents
1980–2001
Patent span
Human necessities
Primary field (CPC A)

Patents· 27 as inventor

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

A47Jprimary
A47JKitchen equipment37%
A21BBakers' ovens15%
F26BDrying solid materials or objects by removing liquid therefrom15%
A23BPreservation of foods, foodstuffs or non-alcoholic beverages11%
A01JManufacture of dairy products4%
A23LFoods, foodstuffs or non-alcoholic beverages, not otherwise provided for4%
F24CDomestic stoves or ranges4%
G08GTraffic control systems4%
G09FDisplaying4%
LOC074%
PatentTitleYear
D0438756'Bread pan'20015,878,508'Food dehydrator'19995,839,356'Automatic bread making machine'19985,699,722'Rapid cooking device'19975,520,096'Cooking system and accessories'19965,513,558'Rapid cooking device'1996D0369274'Extension ring for a convection oven'1996D0367397'Breadmaker'19965,484,621'Method for rapidly cooking food'19965,466,912'Convection oven'19955,465,651'Rapid cooking device'19955,438,916'Cooking system and accessories'19955,420,393'Assemblies for increasing airflow and heating efficiency in a multi-shelf food heating device'19955,416,950'Cooking system and accessories'1995D0357383'Convection oven'19955,403,607'Method for rapidly cooking food'1995D0356716'Muffin holder'1995D0356230'Handle for a countertop oven'1995D0355564'Convection oven'1995D0354659'Bread slicer'1995D0347140'Countertop air oven'19945,165,328'Expandable countertop oven'1992D0328687'Countertop air oven'1992D0321109'Counter top air oven'1991D0321110'Countertop air oven'19914,224,743'Food dehydrating machine'19804,192,081'Food dehydrating machine'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–1992Patents assigned to ALTERNATIVE PIONEERING SYST (3)· patent assignee history
1980Based in Minneapolis, MN, US· patent location history
1991–1994Patents assigned to ALTERNATIVE PIONEERING SYSTEMS INC (4)· patent assignee history
1991–2001Based in Prior Lake, MN, US· patent location history
1995–2001Patents assigned to AMERICAN HARVEST INC (18)· patent assignee history
1995Patents assigned to ALTERNATIVE PRIONEERING SYSTEMS INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AMERICAN HARVEST INC181995–2001
ALTERNATIVE PIONEERING SYSTEMS INC41991–1994
ALTERNATIVE PIONEERING SYST31980–1992
ALTERNATIVE PRIONEERING SYSTEMS INC11995
Locations
LocationPatentsSpan
Prior Lake, Minnesota, US251991–2001
Minneapolis, Minnesota, US21980