Inventor

Walter Herding

Inventor

Hahnbach, DE

Overview

8→

Patents

1989–2009

Patent span

Performing operations

Primary field (CPC B)

Patents· 8 as inventor

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

B01Dprimary

B01DSeparation24%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%

C02FTreatment of water, waste water, sewage, or sludge12%

Y02WClimate change mitigation technologies related to wastewater treatment or waste management12%

C12MApparatus for enzymology or microbiology8%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry4%

B29CShaping or joining of plastics4%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts4%

C04BLime, magnesia4%

C12NMicroorganisms or enzymes4%

PatentTitleYear

7,485,228'Reactor and method for anaerobic wastewater treatment'2009 6,709,589'Dimensionally stable, cross-flow permeable fluid treatment element'2004 6,331,197'Sintered plastic particles filter element'2001 5,874,000'Fibre-coated filter element'1999 5,618,412'Fixed-bed bioreactor and carrier body for purifying fluids'1997 5,547,481'Filter element having an inherently stable, permeably porous plastic body'1996 4,979,969'Filter for the separating of solids particles from hot, gaseous or liquid media'1990 4,876,288'Carrier material for immobilization of microorganisms'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1997Patents assigned to HERDING ENTSTAUBUNG (4)· patent assignee history

1989–1990Based in Amberg, DE· patent location history

1996Based in Hanbach, DE· patent location history

1997–2004Based in Hahnbach, DE· patent location history

1999–2009Patents assigned to HERDING GMBH (4)· patent assignee history

2009Patents assigned to ATZ EVNS (1)· patent assignee history

2009Based in Hahnback, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HERDING ENTSTAUBUNG	4	1989–1997
HERDING GMBH	4	1999–2009
ATZ EVNS	1	2009

Locations

Location	Patents	Span
Hahnbach, DE	4	1997–2004
Amberg, DE	2	1989–1990
Hahnback, DE	1	2009
Hanbach, DE	1	1996