Inventor
Walter Schmidt
Inventor
Bellikon, CH
Overview
Patents· 33 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B03Cprimary
B03CMagnetic or electrostatic separation of solid materials from solid materials or fluids19%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests19%
H01CResistors13%
H01TSpark gaps10%
A01GHorticulture6%
G05BControl or regulating systems in general3%
G05DSystems for controlling or regulating non-electric variables3%
Y10TTechnical subjects covered by former us classification3%
A23LFoods, foodstuffs or non-alcoholic beverages, not otherwise provided for2%
A23VIndexing scheme relating to foods, foodstuffs or non-alcoholic beverages and lactic or propionic acid bacteria used in foodstuffs or food preparation2%
PatentTitleYear
9,775,308'Method and apparatus for the automatic regulation of the irrigation of plants'20178,989,907'Process and apparatus for adequately irrigating soil'20158,862,276'Method and apparatus for the automatic regulation of the irrigation of plants'20148,001,990'Device for measuring thermal properties in a medium and method for determining the moisture content in the medium'20117,369,390'Gas-insulated surge arrester'20087,289,309'Isolation apparatus'20077,154,728'Active part for a surge arrester'20066,678,141'Electrical component with fault arc protection'20046,594,133'Surge arrester'20036,104,590'Electrical apparatus, in particular a surge arrester, having an apparatus for indicating a fault current'20006,028,759'Electrical apparatus, in particular a surge arrestor, having an apparatus for indicating a fault current'20005,942,968'Overvoltage suppressor'19995,936,826'Surge arrester'19995,650,772'Device for indicating a faulty condition of an electrical apparatus, in particular of a surge arrester'19975,602,710'Surge arrester'19975,517,382'Surge suppressor having looped clamping elements'19965,291,366'Surge voltage arrester'19944,873,620'Voltage supply with recovery protection for a thyristor'19894,808,200'Electrostatic precipitator power supply'19894,779,182'Power supply for an electrostatic filter'19884,670,829'Method and apparatus for supplying an electrostatic precipitator with high voltage pulses'19874,649,510'Methods and apparatus for the protection and control of computer programs'19874,566,287'Post mix dispensing machine'19864,433,281'Method for detecting breakdowns in an electrostatic filter'19844,432,062'Method for optimizing the knock frequency of an electrofilter system'19844,432,061'System for controlling the voltage of an electrofilter'19844,413,225'Method of operating an electrostatic precipitator'19834,402,466'Bowl cutter and mixer for foodstuffs'19834,382,805'System for automatically controlling the breakdown voltage limit of an electrofilter'19834,354,860'Method for determining the filter current limit of an electrostatic filter'19824,354,152'Method for automatic control of the voltage of an electrostatic filter at the breakdown limit'19824,233,039'Power supply for an electric precipitator'19804,081,977'De-fleshing apparatus for animal hides'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1989Patents assigned to SIEMENS AG (12)· patent assignee history
1980–1989Based in Uttenreuth, DE· patent location history
1984–1989Patents assigned to METALLGESELLSCHAFT AG (4)· patent assignee history
1986Based in Longwood, FL, US· patent location history
1987Based in New York, NY, US· patent location history
1994–2000Patents assigned to ASEA BROWN BOVERI (5)· patent assignee history
1994–2008Based in Bellikon, CH· patent location history
2003–2007Patents assigned to ABB SCHWEIZ AG (3)· patent assignee history
2011–2017Patents assigned to PLANTCARE AG (4)· patent assignee history
2011–2017Based in Russikon, CH· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SIEMENS AG | 12 | 1980–1989 |
| ASEA BROWN BOVERI | 5 | 1994–2000 |
| METALLGESELLSCHAFT AG | 4 | 1984–1989 |
| PLANTCARE AG | 4 | 2011–2017 |
| ABB SCHWEIZ AG | 3 | 2003–2007 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bellikon, CH | 13 | 1994–2008 |
| Uttenreuth, DE | 12 | 1980–1989 |
| Russikon, CH | 4 | 2011–2017 |
| New York, New York, US | 1 | 1987 |
| Longwood, Florida, US | 1 | 1986 |