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Inventor

Leonhard Walz

Inventor
Rastatt, DE

Overview

15→
Patents
1991–2002
Patent span
Performing operations
Primary field (CPC B)

Patents· 15 as inventor

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

B01Dprimary
B01DSeparation25%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry23%
Y02TClimate change mitigation technologies related to transportation19%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general9%
C04BLime, magnesia4%
H10NElectric solid-state devices not otherwise provided for4%
F02BInternal-combustion piston engines2%
Y02ATechnologies for adaptation to climate change2%
PatentTitleYear
6,444,178'Purification device for gases'20026,200,535'Purification device having a porous body for purifying pollutants from an exhaust gas stream'20016,153,162'Method for the reduction of nitrogen oxides'20006,153,161'Process for reducing NO.sub.x from exhaust fumes'20006,030,589'Catalyst, method for its production and use of same'20006,027,703'Method for operating a purification device for gases as well as a purification device for gases'20006,004,520'Method for operating a purification device, a purification device and use of the same'19995,965,099'Catalyst and a method for its production and use of same'19995,945,080'Catalyst and process for its production'19995,905,056'Catalyst and a method for its production and use of same'19995,851,501'Process for absorbing and desorbing nitrogen oxides in exhaust gases'19985,750,460'Catalyst and process for its production'19985,703,021'Process for making high temperature Bi-Sr-Ca-Cu oxide superconductor'19975,580,534'Zeolite-spinel catalyst for the reduction of nitrogen oxides and the process thereof'19964,990,488'Superconductors Bi-Sr-Cu-O'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1997Patents assigned to HOECHST AG (2)· patent assignee history
1991–2002Based in Rastatt, DE· patent location history
1996–2000Patents assigned to DAIMLER BENZ AG (9)· patent assignee history
1996–1999Based in Neu-Ulm, DE· patent location history
1998–2002Patents assigned to BASF AG (8)· patent assignee history
2000–2002Patents assigned to DAIMLER CHRYSLER AG (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DAIMLER BENZ AG91996–2000
BASF AG81998–2002
DAIMLER CHRYSLER AG42000–2002
HOECHST AG21991–1997
Locations
LocationPatentsSpan
Rastatt, DE111991–2002
Neu-Ulm, DE41996–1999