Inventor
Ronald J. Pulvermacher
Inventor
Cottage Grove, WI, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A01Jprimary
A01JManufacture of dairy products25%
G01FMeasuring volume, volume flow, mass flow or liquid level25%
A61GTransport, personal conveyances, or accommodation specially adapted for patients or disabled persons8%
B60SServicing, cleaning, repairing, supporting, lifting, or manoeuvring of vehicles, not otherwise provided for8%
C02FTreatment of water, waste water, sewage, or sludge8%
F04BPositive-displacement machines for liquids8%
G08BSignalling systems, e.g. personal calling systems8%
H01RElectrically-conductive connections8%
PatentTitleYear
10,347,105Security tag and base station for display20199,791,308'Low salt alert system'20179,583,891'High-density electrical connector for plural multi-contact linear-array connections'20178,936,444'Capacitive liquid level sensor'20157,673,362'Wheel cleaning apparatus for a wheelchair or the like'20105,720,236'Milk meter'19985,218,924'Milking system with variable pressure source'19934,873,943'Milk flow indicator'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989Patents assigned to DAIRY EQUIPMENT CO (1)· patent assignee history
1989–2017Based in Cottage Grove, WI, US· patent location history
1993–1998Patents assigned to DEC INT (2)· patent assignee history
2015Patents assigned to DRECHSEL MELISSA (1)· patent assignee history
2015–2019Based in Sun Prairie, WI, US· patent location history
2017Patents assigned to AD-TECH MEDICAL INSTR CORP (1)· patent assignee history
2017Patents assigned to HANKSCRAFT INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DEC INT | 2 | 1993–1998 |
| AD-TECH MEDICAL INSTR CORP | 1 | 2017 |
| DAIRY EQUIPMENT CO | 1 | 1989 |
| DRECHSEL MELISSA | 1 | 2015 |
| HANKSCRAFT INC | 1 | 2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Cottage Grove, WI, US | 5 | 1989–2017 |
| Sun Prairie, WI, US | 3 | 2015–2019 |