Inventor

Wilhelm E. Walles

Inventor

Freeland, MI, US

Overview

27→

Patents

1976–2002

Patent span

Chemistry

Primary field (CPC C)

Patents· 27 as inventor

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

Y10Tprimary

Y10TTechnical subjects covered by former us classification13%

C08JWorking-up9%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%

C04BLime, magnesia3%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications3%

A01NPreservation of bodies of humans or animals or plants or parts thereof2%

A61KPreparations for medical, dental or toiletry purposes2%

A61LMethods or apparatus for sterilising materials or objects in general2%

B29CShaping or joining of plastics2%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form2%

PatentTitleYear

6,485,683'Headquarter vehicles for chemical biological nuclear defense'2002 5,849,818'Skin sulfonated particles in matrices'1998 5,478,540'Removal of mercury heavy metal values employing sulfur trioxide'1995 5,334,615'Oil with bactericidal and virucidal properties'1994 5,261,764'In situ conversion of a single walled tank to a double walled tank'1993 5,233,081'Method for sulfonation using porous absorber material'1993 5,082,740'Plastic clad metal laminate for heat transfer partitions'1992 5,030,399'Method of in-mold sulfonation of molded plastic article'1991 4,923,753'Controlled-release compositions for acids'1990 4,915,912'Apparatus for the generation of sulfur trioxide reagent and sulfonation of the surface of polymeric resins'1990 4,902,493'Process for the generation of sulfur trioxide reagent and sulfonation of the surface of polymeric resins'1990 4,775,587'Treatment of the interior surfaces of resinous enclosure members'1988 4,756,844'Controlled-release composition having a membrane comprising submicron particles'1988 4,745,015'Thermal insulating panel'1988 4,741,401'Method for treating subterranean formations'1988 4,647,498'Open-cell composition and method of making same'1987 4,615,914'Treatment of the interior surfaces of resinous enclosure members'1986 4,613,524'Open-cell composition and method of making same'1986 4,533,484'Pigments for toiletries'1985 4,462,865'Delignification of lignocellulosic materials with 2-imidazolidinones and 2-oxazolidinones'1984 4,457,977'Metallized plastic articles'1984 4,260,225'Energy saving radiant insulative device'1981 4,220,739'Method for sulfonating organic materials'1980 4,000,246'Removal of gases from an enclosed space using metal hydrocarbyl oxides'1976 3,996,725'Apparatus for filling and hermetically sealing thermoplastic containers under vacuum'1976 3,993,811'Thermal insulating panel for use in an insulative container and method of making said panel'1976 3,959,561'Transparent astatic resinous articles and method for their production'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1992Patents assigned to DOW CHEMICAL CO (21)· patent assignee history

1976–1980Based in Midland, MI, US· patent location history

1981–2002Based in Freeland, MI, US· patent location history

1993–1994Patents assigned to WALLES WILHELM E (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DOW CHEMICAL CO	21	1976–1992
WALLES WILHELM Eself	3	1993–1994

Locations

Location	Patents	Span
Freeland, MI, US	22	1981–2002
Midland, MI, US	5	1976–1980