Inventor
Alfred Keller
Inventor
Willich, DE
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
D06Bprimary
D06BTreating textile materials using liquids, gases or vapours19%
B01DSeparation6%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry6%
A23BPreservation of foods, foodstuffs or non-alcoholic beverages3%
A23KFodder3%
A23LFoods, foodstuffs or non-alcoholic beverages, not otherwise provided for3%
A23VIndexing scheme relating to foods, foodstuffs or non-alcoholic beverages and lactic or propionic acid bacteria used in foodstuffs or food preparation3%
B05CApparatus for applying fluent materials to surfaces, in general3%
B41FPrinting machines or presses3%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables3%
PatentTitleYear
10,919,827Process for recovering 3-methylbut-3-en-1-ol202110,889,547Method for the purification of ethoxyquin20216,314,771'Device for applying a patterning agent to a line'20015,968,205'Installation and a process for patterning a web of textile material'19995,911,902'Use of modified fatty amines for preventing low molecular weight by-product deposits on textile materials'19995,596,930'Process and device for moistening a moving printed then thermally dried web of material'19975,546,679'Installation for the thermal drying of strips, sheets, etc., of material'19965,430,645'Robotic system for testing of electric vehicles'19955,408,715'Method and system for the treatment of webs of textile material by liquids and steam'19955,063,758'Apparatus for applying a treatment fluid having pivotal nozzle combs'19915,048,314'Apparatus for applying a treatment fluid having a flow homogenizing baffle'19914,680,965'Process for continuous density measurement'19874,183,234'Horizontal applicator'19804,015,682'Protecting system for roadway adjacent areas'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977Patents assigned to KELLER ALFRED (1)· patent assignee history
1987–1997Patents assigned to WEITMANN & KONRAD FA (3)· patent assignee history
1987–1997Based in Leinfelden-Echterdingen, DE· patent location history
1991–2001Patents assigned to KUESTERS EDUARD MASCHF (5)· patent assignee history
1991–2001Based in Willich, DE· patent location history
1995Based in Hixson, TN, US· patent location history
1999Patents assigned to CIBA SC HOLDING AG (1)· patent assignee history
1999Based in Riehen, CH· patent location history
2021Patents assigned to BASF SE (2)· patent assignee history
2021Based in Ludwigshafen, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KUESTERS EDUARD MASCHF | 5 | 1991–2001 |
| WEITMANN & KONRAD FA | 3 | 1987–1997 |
| BASF SE | 2 | 2021 |
| CIBA SC HOLDING AG | 1 | 1999 |
| KELLER ALFREDself | 1 | 1977 |
Locations
| Location | Patents | Span |
|---|---|---|
| Willich, DE | 5 | 1991–2001 |
| Leinfelden-Echterdingen, DE | 3 | 1987–1997 |
| Ludwigshafen, DE | 2 | 2021 |
| Riehen, CH | 1 | 1999 |
| Hixson, TN, US | 1 | 1995 |