Inventor · disambiguated record
Siegfried Wolff
Also filed as: WOLFF SIEGFRIED
48 granted patents·1,908 citations·filing 1974–1995
99Inventor score
Top patents by PatentIndex Score
48 records- 0198US5159009ACarbon blacks modified with organosilicon compounds, method of their production and their use in rubber mixturesDEGUSSA·Filed 1991·Granted Oct 27, 1992·154 cites·7 claims
- 0297US4229333ACross-linkable rubber mixtures containing silicate fillers and process for cross-linkingDEGUSSA·Filed 1979·Granted Oct 21, 1980·105 cites·83 claims
- 0396US5116886AMethod for the production of fillers modified with organosilicon compounds, the fillers produced in this manner and their useDEGUSSA·Filed 1991·Granted May 26, 1992·146 cites·2 claims
- 0496US4704414ASurface modified synthetic, silicatic filler, a process for its production and its useDEGUSSA·Filed 1985·Granted Nov 3, 1987·106 cites·18 claims
- 0596US4514231ANatural oxidic or silicate filler modified on the surface, a process for its productionDEGUSSA·Filed 1984·Granted Apr 30, 1985·98 cites·10 claims
- 0696US4076550AReinforcing additiveDEGUSSA·Filed 1976·Granted Feb 28, 1978·167 cites·15 claims
- 0796US3997356AReinforcing additiveDEGUSSA·Filed 1974·Granted Dec 14, 1976·110 cites·20 claims
- 0896US3957718ACompositions containing silica, a phenoplast or an aminoplast, and a silaneDEGUSSA·Filed 1974·Granted May 18, 1976·96 cites·25 claims
- 0995US4517336ARubber mixtures giving reversion-free vulcanizates and process of vulcanizationDEGUSSA·Filed 1981·Granted May 14, 1985·73 cites·53 claims
- 1094US5401789AProcess for the production of plastic and rubber compositions filled with carbon blackDEGUSSA·Filed 1992·Granted Mar 28, 1995·75 cites·21 claims
- 1194US4384132ABis-(silylethyl)-oligosulphides and process for their productionDEGUSSA·Filed 1981·Granted May 17, 1983·54 cites·15 claims
- 1294US4222915AVulcanizable halorubber mixturesDEGUSSA·Filed 1979·Granted Sep 16, 1980·53 cites·29 claims
- 1394US4128438AGranulate form organosilane preparationDEGUSSA·Filed 1978·Granted Dec 5, 1978·54 cites·11 claims
- 1494US3938574AVulcanizable rubber mixture for tire treads having improved skid resistanceDEGUSSA·Filed 1974·Granted Feb 17, 1976·111 cites·23 claims
- 1593US4297145ASilane/filler preparations, process for their production and their useDEGUSSA·Filed 1980·Granted Oct 27, 1981·74 cites·23 claims
- 1691US4524169AElastic molding material, method of producing and shaping and use thereofDEGUSSA·Filed 1984·Granted Jun 18, 1985·64 cites·9 claims
- 1788US4444936ABis-(silylethyl)-oligosulphides and process for their productionDEGUSSA·Filed 1983·Granted Apr 24, 1984·34 cites·20 claims
- 1888US4408064ABis-(silylethyl)-oligosulphides and process for their productionDEGUSSA·Filed 1979·Granted Oct 4, 1983·31 cites·7 claims
- 1984US5037872ASubstituted N-trichloromethyl thiodicarboximides and N,N-substituted bis-(2,4-diamino-s-triazin-6-yl)-oligosulfides in vulcanizable rubberFEDERAL REPUBLIC OF GERMANY·Filed 1989·Granted Aug 6, 1991·34 cites·8 claims
- 2083US4278587AVulcanizable rubber mixture based on halogen free rubber for vulcanizing these rubber mixtures and use of the rubber mixturesDEGUSSA·Filed 1980·Granted Jul 14, 1981·31 cites·76 claims
- 2179US4517335AProcess for vulcanization or cross-linking halogen containing rubbers in the presence of silicon containing isothiuronium compoundsDEGUSSA·Filed 1984·Granted May 14, 1985·26 cites·20 claims
- 2279US3968074AReaction product of 4,4-bis-(hydroxymethyl)-cyclohexene compounds with sulfurDEGUSSA·Filed 1975·Granted Jul 6, 1976·18 cites·35 claims
- 2378US5321070AAdhesion promoters for rubber and synthetic mixturesDEGUSSA·Filed 1993·Granted Jun 14, 1994·25 cites·10 claims
- 2478US4621121AVulcanizable mixture containing bis-(2-ethylamino-s-triazin-6-yl)-tetrasulfideDEGUSSA·Filed 1985·Granted Nov 4, 1986·25 cites·12 claims
- 2578US4442163AResorcinol-filler preparation, process for the production and use of the sameDEGUSSA·Filed 1983·Granted Apr 10, 1984·25 cites·19 claims
- 2674US4835297AMethod of preparing sulfenic acid chlorides and sulfenic acid estersDEGUSSA·Filed 1986·Granted May 30, 1989·12 cites·5 claims
- 2764US5206304AVulcanizable rubber mixtures containing bis-(2,4-organylthio-triazine-6-yl) polysulfidesDEGUSSA·Filed 1991·Granted Apr 27, 1993·10 cites·5 claims
- 2864US5164501AMethod of preparing pure 3-butenyl triorganooxysilanes, the intermediate products 3,4-dichlorobutyl triorganooxysilanes and use of the final productsDEGUSSA·Filed 1992·Granted Nov 17, 1992·9 cites·2 claims
- 2960US4673741ABis-(2-ethylamino-4-diethylamino-s-triazine-6-yl) tetrasulfide, process for its production, use and vulcanizable mixtures containing itDEGUSSA·Filed 1986·Granted Jun 16, 1987·5 cites·1 claims
- 3056US5470905AAdhesion promoters for rubber and synthetic mixturesDEGUSSA·Filed 1994·Granted Nov 28, 1995·8 cites·4 claims
- 3148US5184779AMethod of producing granulated material composed of zinc oxide and silica, resulting product and its useDEGUSSA AKIENGESELLSCAHFT·Filed 1991·Granted Feb 9, 1993·14 cites·14 claims
- 3248US4337205ANitrogen containing alkoxysilane and process for its productionDEGUSSA·Filed 1980·Granted Jun 29, 1982·2 cites·6 claims
- 3347US4636550AVulcanizable 2-sec.amino-4,6-dimercapto-s-triazine containing halogen rubber mixturesDEGUSSA·Filed 1985·Granted Jan 13, 1987·7 cites·27 claims
- 3445US4704428ASilyl substituted cyclopentadiene, process for its production and synthetic resin and rubber mixtures containing itDEGUSSA·Filed 1986·Granted Nov 3, 1987·5 cites·17 claims
- 3545US4645850ASilyl substituted cyclopentadiene, process for its production and synthetic resin and rubber mixtures containing itDEGUSSA·Filed 1985·Granted Feb 24, 1987·5 cites·17 claims
- 3643US5219963APeroxide vulcanizable moulding materials and a method of their manufactureDEGUSSA·Filed 1991·Granted Jun 15, 1993·5 cites·7 claims
- 3743US4952641AOrganyloxysilyl-functional thioures with halogen rubber mixturesDEGUSSA·Filed 1989·Granted Aug 28, 1990·6 cites·9 claims
- 3842US4430280AProcess for the production of mixed granulate from carbon black and light fillerDEGUSSA·Filed 1980·Granted Feb 7, 1984·4 cites·5 claims
- 3941US5143962AMethod of granulating resorcinol/silica mixtures, the granulates obtained in this manner and their useDEGUSSA·Filed 1991·Granted Sep 1, 1992·7 cites·6 claims
- 4041US5073644AMethod of preparing pure 3-butenyl triorganooxysilanes, the intermediate products 3,4-dichlorobutyl triorgano-oxysilanes and use of the final productsDESCHLER ULRICH·Filed 1989·Granted Dec 17, 1991·2 cites·4 claims
- 4140US3969353ATriazinesulfenimides of dicarboxylic acidsDEGUSSA·Filed 1975·Granted Jul 13, 1976·3 cites·26 claims
- 4236US4381949AResorcinol-filler preparation, process for the production and use of the sameDEGUSSA·Filed 1981·Granted May 3, 1983·3 cites·17 claims
- 4335US6521713B2Vulcanizable EPDM containing rubber compositionDEGUSSA·Filed 1995·Granted Feb 18, 2003·6 cites·2 claims
- 4434US5216055AHeat vulcanizable moulding materialsDEGUSSA·Filed 1991·Granted Jun 1, 1993·2 cites·3 claims
- 4533US4053461AReaction product of 4,4-bis-(hydroxymethyl)-cyclohexene compounds with sulfurDEGUSSA·Filed 1976·Granted Oct 11, 1977·0 cites·17 claims
- 4633US4000119ATriazinesulfenimides of dicarboxylic acidsDEGUSSA·Filed 1976·Granted Dec 28, 1976·2 cites·33 claims
- 4731US5025047AUse of N,N'- and N,N',N'-substituted silyl ureas as antidegradation agents and polymer blends which contain themDEGUSSA·Filed 1990·Granted Jun 18, 1991·1 cites·16 claims
- 4829US4837322AMixtures of sulfurous triazine compoundsDEGUSSA·Filed 1987·Granted Jun 6, 1989·1 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →