Inventor

Ronald E. MacLeay

Inventor

Williamsville, NY, US

Overview

70→

Patents

1976–1998

Patent span

Chemistry

Primary field (CPC C)

Patents· 70 as inventor

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

C08Fprimary

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds37%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients14%

C07CAcyclic or carbocyclic compounds13%

C07DHeterocyclic compounds9%

C08JWorking-up8%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

C08LCompositions of macromolecular compounds3%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments3%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds3%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium2%

PatentTitleYear

5,719,096'Liquid peroxide compositions'1998 5,539,061'Liquid peroxide compositions'1996 5,397,821'Derivatives of N-hals-substituted amic acid hydrazides'1995 RE034791'Polymer bound hindered amine light stabilizers'1994 5,338,853'Derivatives of N-HALS-substituted amic acid hydrazides'1994 5,318,851'Epoxy resins containing bound light stabilizing groups'1994 5,319,090'Benzotriazole and oxanilide UV absorber hydrazides'1994 5,314,970'OO-t-alkyl O-polycaprolactone monoperoxycarbonates'1994 5,233,047'Benzotriazole UV absorber hydrazides'1993 5,220,015'Flame retardants compounds'1993 5,213,897'Epoxy resins containing bound light stabilizing groups'1993 5,214,147'Process for preparing reactive hindered amine light stabilizers'1993 5,206,378'Hydrazido functionalized 2-(2-hydroxyphenyl)-2H-benzotriazoles'1993 5,162,405'Single-functional and mixtures of multi-functional oligomeric performance additive compositions and their uses'1992 5,140,070'Compositions comprising polymer bond flame retardants'1992 5,101,033'Process for preparing reactive hindered amine light stabilizers'1992 5,096,974'Process for preparing multipurpose polymer bound stabilizers and polymer bound stabilizer produced thereby'1992 5,096,977'Process for preparing polymer bound UV stabilizers'1992 5,043,372'N,N\'-hydrocarbylenebis[N-hals-substituted amic acid hydrazides] and their derivatives'1991 5,037,894'Polymer bound flame retardants'1991 5,013,777'Novel single-functional and mixtures of multi-functional oligomeric performance additive compositions and their uses'1991 4,981,914'Polymer bound UV stabilizers'1991 4,981,915'Multipurpose polymer bound stabilizers'1991 4,981,917'Process for preparing polymer bound antioxidant stabilizers'1991 4,980,420'Benzotriazole and oxanilide UV absorber hydrazides'1990 4,978,699'Light stabilizing flame retardants'1990 4,975,489'Process for preparing polymer bound hindered amine light stabilizers'1990 4,868,246'Polymer bound UV stabilizers'1989 4,866,136'Process for producing polymer bound hindered amine light stabilizers'1989 4,863,999'Multipurpose polymer bound stabilizers'1989 4,857,596'Polymer bound antioxidant stabilizers'1989 4,857,595'Polymer bound hindered amine light stabilizers'1989 4,831,096'Process of bulk polymerization of styrene using azoalkane mixtures containing unsymmetrical azoalkanes'1989 4,824,884'Cyclic anhydride derivatives of hydrazide functionalized hindered amine light stabilizers'1989 4,801,749'Phenolic antioxidant hydrazides'1989 4,604,455'Process of preparing azoalkane mixture containing at least one unsymmetrical azoalkane'1986 4,585,857'Bleach oxidation of N,N\'-di-t-octylsulfamide to di-t-octyldiazene'1986 4,243,821'Process for the preparation of symmetrical dicumyl peroxides'1981 4,241,222'Process for the preparation of cumyl peroxides'1980 4,228,069'Azoxy compound having use in a process for preparing foamed structures'1980 4,219,476'Tertiary aliphatic amidazo compound'1980 4,218,370'Azo monomer useful in polymerization systems'1980 4,129,586'Peroxide free radical initiators containing ultraviolet light stabilizing groups'1978 4,101,522'Azo compounds containing acylating function and azo containing polymers'1978 4,101,464'Process for preparing foamed solids using two or more azo compounds'1978 4,086,224'Reduction process for making azo compound'1978 4,075,199'Tertiary aliphatic alpha-peroxyazo compounds'1978 4,075,286'Preparation of block polymers using polyazo sequential free radical initiators'1978 4,069,377'Polymerization of ethylenically unsaturated monomers employing secondary-aliphatic .alpha.-substituted azoalkanes'1978 4,063,012'Polymerization of ethylenically unsaturated monomers employing catalyst of aliphatic .alpha.-(hydroperoxy)azo compounds and salts thereof'1977 4,055,714'Azo free radical initiators containing ultraviolet light stabilizing groups'1977 4,048,423'Process for polymerizing unsaturated monomers and unsaturated polyester resins employing unsymmetrical tertiary-aliphatic azoalkanes'1977 4,045,426'Bisazo free radical initiators containing ultraviolet light stabilizing groups'1977 4,045,427'Azo-peroxide free radical initiators containing ultraviolet light stabilizing groups'1977 4,042,773'Peroxide free radical initiators containing ultraviolet light stabilizing groups'1977 4,029,615'Polymeric cellular structures'1977 4,028,344'.alpha.-ISOCYANATO AND .alpha.-ISOTHIOCYANATO AZOS AND THEIR DERIVATIVES'1977 4,025,502'Secondary-aliphatic .alpha.-substituted azoalkanes'1977 4,010,152'Aliphatic alpha-(hydroperoxy) azo compounds and salts thereof'1977 4,009,157'Primary-aliphatic .alpha.-hydroxy azoalkanes'1977 4,008,273'Tertiary alkyl semicarbazides and their method of preparation'1977 4,007,165'Unsymmetrical tertiary-aliphatic azoalkanes'1977 4,001,207'Tertiary-aliphatic amidazo compounds'1977 3,993,609'Process for preparing foamed structures'1976 3,992,368'Oxidation process for preparing .alpha.-hydroxyazo compounds'1976 3,987,024'Bis- and trisazo sequential free radical initiators used in preparing block and graft copolymers'1976 3,962,210'Tertiary aliphatic alpha-(sulfo)-azo compounds'1976 3,957,750'Symmetrical bis(unsymmetrical tertiary-alkyl and tertiary-aralkyl azo) compounds'1976 3,956,269'Azo free radical initiators containing ultraviolet light stabilizing groups'1976 3,931,143'Unsymmetrical aliphatic monoazo compounds'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1989Patents assigned to PENNWALT CORP (43)· patent assignee history

1976–1995Based in Williamsville, NY, US· patent location history

1976–1978Based in Buffalo, NY, US· patent location history

1980–1994Based in Amherst, NY, US· patent location history

1986–1998Based in Erie County, NY, US· patent location history

1990–1994Patents assigned to ATOCHEM NORTH AMERICA (13)· patent assignee history

1992–1998Patents assigned to ATOCHEM NORTH AMERICA ELF (12)· patent assignee history

1994Patents assigned to ELF ATOCHEM N A INC (1)· patent assignee history

1995Patents assigned to ELFATOCHEM NORTH AMERICA INC (1)· patent assignee history

1996Based in Amheist, NY, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
PENNWALT CORP	43	1976–1989
ATOCHEM NORTH AMERICA	13	1990–1994
ATOCHEM NORTH AMERICA ELF	12	1992–1998
ELF ATOCHEM N A INC	1	1994
ELFATOCHEM NORTH AMERICA INC	1	1995

Locations

Location	Patents	Span
Williamsville, New York, US	49	1976–1995
Erie County, New York, US	10	1986–1998
Amherst, New York, US	5	1980–1994
Buffalo, New York, US	5	1976–1978
Amheist, New York, US	1	1996