Inventor
Silvestro Costanzi
Inventor
San Giuliano Milanese, IT
Overview
Patents· 22 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Kprimary
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients33%
C07DHeterocyclic compounds14%
C08LCompositions of macromolecular compounds12%
C08JWorking-up10%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium6%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds4%
B01DSeparation2%
B29BPreparation or pretreatment of the material to be shaped2%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds2%
C02FTreatment of water, waste water, sewage, or sludge2%
PatentTitleYear
8,178,607'Polyamide compositions flame retarded with aluminium'20127,700,680'Polyester compositions flame retarded with halogen-free additives'20107,619,022'Flame retardant polymeric compositions'20097,608,654'Halogen-free flame retardant polycarbonate compositions'20096,180,011'Method for removing hydrocarbon products from water surfaces'20016,056,897'Stabilizer in solid form for organic polymers'20005,462,984'Solid blends of stabilizers for polymers'19955,350,786'Process of (co)polymerization of .alpha.-olefins in the presence of stabilizers'19945,270,470'Process for the synthesis of allylated derivatives of 2,2,6,6-tetraalkylpiperidinols'19935,218,116'Procedure for the preparation of nitroxyl radicals of sterically hindered amines'19935,216,103'Siliconic U.V. stabilizers containing reactive groups'19935,158,998'Method for stabilizing lacquers and coatings, and the stabilized compositions obtained'19925,051,458'UV stabilizers for organic polymers'19914,946,880'Silylated U.V. stabilizers containing hindered tertiary amines'19904,935,063'Fillers and pigments possessing organic polymer stabilizing properties and a process for their preparation'19904,898,946'Process for the preparation of N-allyl-piperidine derivatives'19904,888,375'Organic polymer stabilization'19894,617,333'Stabilized polyolefinic compositions and stabilizer compounds suitable to that purpose'19864,393,218'2,2,4,5,5-Pentamethyl-3-formyl-.DELTA..sup.3 -pyrroline and the preparation thereof'19834,346,188'Polyolefin compositions stabilized against UV-radiations by pyrrolidine derivatives'19824,325,864'Pyrrolidine-ring-containing compositions for use as anti-UV stabilizers in plastics materials'19824,321,190'Polyolefin compositions stabilized against UV light radiations with open-chain hindered amines'1982Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1982–1983Patents assigned to ANIC SPA (4)· patent assignee history
1982–1994Based in San Giuliano Milanese, IT· patent location history
1986–2001Patents assigned to ENICHEM SINTESI (13)· patent assignee history
1989–1993Based in Milan, IT· patent location history
1995–2001Based in Lodi Vecchio, IT· patent location history
2000Patents assigned to GREAT LAKES CHEMICAL EUROP (1)· patent assignee history
2000Based in Lodi, IT· patent location history
2009–2012Patents assigned to ITALMATCH CHEMICALS SPA (3)· patent assignee history
2009–2012Based in Genoa, IT· patent location history
2012Patents assigned to COSTANZI SILVESTRO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ENICHEM SINTESI | 13 | 1986–2001 |
| ANIC SPA | 4 | 1982–1983 |
| ITALMATCH CHEMICALS SPA | 3 | 2009–2012 |
| COSTANZI SILVESTROself | 1 | 2012 |
| GREAT LAKES CHEMICAL EUROP | 1 | 2000 |
Locations
| Location | Patents | Span |
|---|---|---|
| San Giuliano Milanese, IT | 9 | 1982–1994 |
| Milan, IT | 5 | 1989–1993 |
| Genoa, IT | 4 | 2009–2012 |
| Lodi Vecchio, IT | 2 | 1995–2001 |
| Lodi, IT | 1 | 2000 |