Inventor
Donald J. Alexander
Inventor
Milwaukee, WI, US
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A63Bprimary
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing33%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests22%
A61BDiagnosis11%
E01CConstruction of, or surfaces for, roads, sports grounds, or the like7%
A21DTreatment of flour or dough for baking, e.g. by addition of materials4%
A23LFoods, foodstuffs or non-alcoholic beverages, not otherwise provided for4%
A61HPhysical therapy apparatus, e.g. devices for locating or stimulating reflex points in the body4%
B30BPresses in general4%
F26BDrying solid materials or objects by removing liquid therefrom4%
LOC224%
PatentTitleYear
6,923,746'Exercise treadmill'2005D0482752'Waterfowl decoy pedestal'20036,436,008'Exercise treadmill'20026,095,951'Exercise treadmill'20005,752,897'Exercise treadmill'19985,599,259'Exercise treadmill'19975,510,136'Method of making bread products without shortenings and/or oils'19965,484,362'Exercise treadmill'19965,382,207'Exercise treadmill'19955,365,934'Apparatus and method for measuring heart rate'19945,360,619'Cereal food ingredients from waxy barley'19945,318,487'Exercise system and method for managing physiological intensity of exercise'19945,305,533'Combined direct and indirect rotary dryer with reclaimer'19945,243,993'Apparatus and method for measuring heart rate'19935,135,447'Exercise apparatus for simulating stair climbing'19925,083,870'Asphalt plant with segmented drum and zonal heating'19924,448,357'Rotary macerator'19844,347,016'Method and apparatus for asphalt paving'1982Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1982–1994Patents assigned to ALEXANDER DONALD J (3)· patent assignee history
1982–1994Patents assigned to SINDELAR ROBERT A (3)· patent assignee history
1982–1994Based in Beaver Dam, WI, US· patent location history
1984Patents assigned to INT HARVESTER CO (1)· patent assignee history
1984Based in Plainfield, IL, US· patent location history
1992–1997Patents assigned to LIFE FITNESS (7)· patent assignee history
1992–2005Based in Milwaukee, WI, US· patent location history
1994–1996Based in Martin, ND, US· patent location history
1998–2005Patents assigned to BRUNSWICK CORP (4)· patent assignee history
2003Based in Alturas, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| LIFE FITNESS | 7 | 1992–1997 |
| BRUNSWICK CORP | 4 | 1998–2005 |
| ALEXANDER DONALD Jself | 3 | 1982–1994 |
| SINDELAR ROBERT A | 3 | 1982–1994 |
| INT HARVESTER CO | 1 | 1984 |
Locations
| Location | Patents | Span |
|---|---|---|
| Milwaukee, WI, US | 11 | 1992–2005 |
| Beaver Dam, WI, US | 3 | 1982–1994 |
| Martin, ND, US | 2 | 1994–1996 |
| Alturas, California, US | 1 | 2003 |
| Plainfield, Illinois, US | 1 | 1984 |