Inventor · disambiguated record
Ronald E. Macleay
Also filed as: MACLEAY RONALD E · MACLEAY RONALD EDWARD · SHEPPARD CHESTER S
70 granted patents·916 citations·filing 1971–1995
99Inventor score
Files withPENNWALT CORP43ATOCHEM NORTH AMERICA13ATOCHEM NORTH AMERICA ELF12ELF ATOCHEM N A INC1ELFATOCHEM NORTH AMERICA INC1
Top patents by PatentIndex Score
70 records- 0198US4007165AUnsymmetrical tertiary-aliphatic azoalkanesPENNWALT CORP·Filed 1974·Granted Feb 8, 1977·59 cites·20 claims
- 0295US4857596APolymer bound antioxidant stabilizersPENNWALT CORP·Filed 1987·Granted Aug 15, 1989·84 cites·11 claims
- 0395US3956269AAzo free radical initiators containing ultraviolet light stabilizing groupsPENNWALT CORP·Filed 1974·Granted May 11, 1976·31 cites·5 claims
- 0493US4868246APolymer bound UV stabilizersPENNWALT CORP·Filed 1987·Granted Sep 19, 1989·57 cites·11 claims
- 0589US4857595APolymer bound hindered amine light stabilizersPENNWALT CORP·Filed 1987·Granted Aug 15, 1989·53 cites·19 claims
- 0687US4981917AProcess for preparing polymer bound antioxidant stabilizersATOCHEM NORTH AMERICA·Filed 1989·Granted Jan 1, 1991·45 cites·12 claims
- 0787US3931143AUnsymmetrical aliphatic monoazo compoundsPENNWALT CORP·Filed 1971·Granted Jan 6, 1976·18 cites·13 claims
- 0884US4042773APeroxide free radical initiators containing ultraviolet light stabilizing groupsPENNWALT CORP·Filed 1976·Granted Aug 16, 1977·15 cites·7 claims
- 0982US3993609AProcess for preparing foamed structuresPENNWALT CORP·Filed 1975·Granted Nov 23, 1976·35 cites·31 claims
- 1078US4824884ACyclic anhydride derivatives of hydrazide functionalized hindered amine light stabilizersPENNWALT CORP·Filed 1987·Granted Apr 25, 1989·14 cites·23 claims
- 1177US5338853ADerivatives of N-HALS-substituted amic acid hydrazidesATOCHEM NORTH AMERICA ELF·Filed 1991·Granted Aug 16, 1994·17 cites·25 claims
- 1277US5096977AProcess for preparing polymer bound UV stabilizersATOCHEM NORTH AMERICA·Filed 1990·Granted Mar 17, 1992·28 cites·10 claims
- 1377US4863999AMultipurpose polymer bound stabilizersPENNWALT CORP·Filed 1987·Granted Sep 5, 1989·24 cites·27 claims
- 1476US5013777ANovel single-functional and mixtures of multi-functional oligomeric performance additive compositions and their usesATOCHEM NORTH AMERICA·Filed 1987·Granted May 7, 1991·29 cites·21 claims
- 1574US4008273ATertiary alkyl semicarbazides and their method of preparationPENNWALT CORP·Filed 1975·Granted Feb 15, 1977·7 cites·4 claims
- 1672US5162405ASingle-functional and mixtures of multi-functional oligomeric performance additive compositions and their usesATOCHEM NORTH AMERICA ELF·Filed 1991·Granted Nov 10, 1992·20 cites·8 claims
- 1772US4129586APeroxide free radical initiators containing ultraviolet light stabilizing groupsPENNWALT CORP·Filed 1977·Granted Dec 12, 1978·15 cites·7 claims
- 1871US4045427AAzo-peroxide free radical initiators containing ultraviolet light stabilizing groupsPENNWALT CORP·Filed 1976·Granted Aug 30, 1977·13 cites·4 claims
- 1970US4866136AProcess for producing polymer bound hindered amine light stabilizersPENNWALT CORP·Filed 1987·Granted Sep 12, 1989·18 cites·29 claims
- 2069US4981915AMultipurpose polymer bound stabilizersATOCHEM NORTH AMERICA·Filed 1989·Granted Jan 1, 1991·17 cites·25 claims
- 2167US4075286APreparation of block polymers using polyazo sequential free radical initiatorsPENNWALT CORP·Filed 1974·Granted Feb 21, 1978·12 cites·4 claims
- 2266US4101522AAzo compounds containing acylating function and azo containing polymersPENNWALT CORP·Filed 1976·Granted Jul 18, 1978·14 cites·10 claims
- 2365US5233047ABenzotriazole UV absorber hydrazidesATOCHEM NORTH AMERICA ELF·Filed 1991·Granted Aug 3, 1993·17 cites·24 claims
- 2465US5214147AProcess for preparing reactive hindered amine light stabilizersATOCHEM NORTH AMERICA ELF·Filed 1991·Granted May 25, 1993·9 cites·18 claims
- 2565US5043372AN,N'-hydrocarbylenebis[N-hals-substituted amic acid hydrazides] and their derivativesATOCHEM NORTH AMERICA·Filed 1989·Granted Aug 27, 1991·7 cites·30 claims
- 2665US4241222AProcess for the preparation of cumyl peroxidesPENNWALT CORP·Filed 1979·Granted Dec 23, 1980·6 cites·6 claims
- 2764US5318851AEpoxy resins containing bound light stabilizing groupsELF ATOCHEM N A INC·Filed 1993·Granted Jun 7, 1994·13 cites·30 claims
- 2864US4801749APhenolic antioxidant hydrazidesPENNWALT CORP·Filed 1987·Granted Jan 31, 1989·14 cites·6 claims
- 2963US4981914APolymer bound UV stabilizersATOCHEM NORTH AMERICA·Filed 1989·Granted Jan 1, 1991·13 cites·7 claims
- 3063US4978699ALight stabilizing flame retardantsATOCHEM NORTH AMERICA·Filed 1988·Granted Dec 18, 1990·6 cites·18 claims
- 3163US4029615APolymeric cellular structuresPENNWALT CORP·Filed 1976·Granted Jun 14, 1977·16 cites·10 claims
- 3259US3957750ASymmetrical bis(unsymmetrical tertiary-alkyl and tertiary-aralkyl azo) compoundsPENNWALT CORP·Filed 1973·Granted May 18, 1976·9 cites·6 claims
- 3358US4101464AProcess for preparing foamed solids using two or more azo compoundsPENNWALT CORP·Filed 1976·Granted Jul 18, 1978·13 cites·23 claims
- 3458US4045426ABisazo free radical initiators containing ultraviolet light stabilizing groupsPENNWALT CORP·Filed 1976·Granted Aug 30, 1977·9 cites·4 claims
- 3557USRE34791EPolymer bound hindered amine light stabilizersATOCHEM NORTH AMERICA·Filed 1991·Granted Nov 15, 1994·10 cites·21 claims
- 3656US4010152AAliphatic alpha-(hydroperoxy) azo compounds and salts thereofPENNWALT CORP·Filed 1974·Granted Mar 1, 1977·4 cites·9 claims
- 3755US5101033AProcess for preparing reactive hindered amine light stabilizersATOCHEM NORTH AMERICA·Filed 1990·Granted Mar 31, 1992·9 cites·4 claims
- 3855US5096974AProcess for preparing multipurpose polymer bound stabilizers and polymer bound stabilizer produced therebyATOCHEM NORTH AMERICA·Filed 1990·Granted Mar 17, 1992·10 cites·10 claims
- 3955US4055714AAzo free radical initiators containing ultraviolet light stabilizing groupsPENNWALT CORP·Filed 1976·Granted Oct 25, 1977·8 cites·4 claims
- 4054US5140070ACompositions comprising polymer bond flame retardantsATOCHEM NORTH AMERICA ELF·Filed 1991·Granted Aug 18, 1992·9 cites·15 claims
- 4154US4025502ASecondary-aliphatic α-substituted azoalkanesPENNWALT CORP·Filed 1974·Granted May 24, 1977·6 cites·12 claims
- 4252US4975489AProcess for preparing polymer bound hindered amine light stabilizersATOCHEM NORTH AMERICA·Filed 1989·Granted Dec 4, 1990·9 cites·9 claims
- 4352US4063012APolymerization of ethylenically unsaturated monomers employing catalyst of aliphatic α-(hydroperoxy)azo compounds and salts thereofPENNWALT CORP·Filed 1976·Granted Dec 13, 1977·7 cites·3 claims
- 4452US4048423AProcess for polymerizing unsaturated monomers and unsaturated polyester resins employing unsymmetrical tertiary-aliphatic azoalkanesPENNWALT CORP·Filed 1976·Granted Sep 13, 1977·7 cites·4 claims
- 4551US5319090ABenzotriazole and oxanilide UV absorber hydrazidesATOCHEM NORTH AMERICA ELF·Filed 1993·Granted Jun 7, 1994·7 cites·3 claims
- 4650US5213897AEpoxy resins containing bound light stabilizing groupsATOCHEM NORTH AMERICA ELF·Filed 1991·Granted May 25, 1993·7 cites·17 claims
- 4750US4604455AProcess of preparing azoalkane mixture containing at least one unsymmetrical azoalkanePENNWALT CORP·Filed 1984·Granted Aug 5, 1986·3 cites·8 claims
- 4849US4218370AAzo monomer useful in polymerization systemsPENNWALT CORP·Filed 1979·Granted Aug 19, 1980·6 cites·6 claims
- 4948US4980420ABenzotriazole and oxanilide UV absorber hydrazidesATOCHEM NORTH AMERICA·Filed 1989·Granted Dec 25, 1990·7 cites·4 claims
- 5046US5397821ADerivatives of N-hals-substituted amic acid hydrazidesELFATOCHEM NORTH AMERICA INC·Filed 1994·Granted Mar 14, 1995·6 cites·29 claims
Showing the top 50 of 70 patent records by PatentIndex Score.
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