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Inventor

Sivaram Krishnan

Inventor
Pittsburgh, PA, US

Overview

82→
Patents
1981–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 82 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 ingredients31%
C08LCompositions of macromolecular compounds21%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds12%
C08JWorking-up8%
G06FElectric digital data processing8%
C07CAcyclic or carbocyclic compounds5%
Y10TTechnical subjects covered by former us classification4%
C07DHeterocyclic compounds2%
G02BOptical elements, systems or apparatus2%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments2%
PatentTitleYear
10,888,590Medicated propolis oil composition20217,251,594'Execution time modification of instruction emulation parameters'20077,149,676'Variable accuracy modes in microprocessor simulation'20067,003,649'Control forwarding in a pipeline digital processor'20066,772,323'Pipelined processor executing logical or mathematical operation specifying compare folded branch instruction'20046,477,639'Branch instruction mechanism for processor'20026,457,118'Method and system for selecting and using source operands in computer system instructions'20026,449,712'Emulating execution of smaller fixed-length branch/delay slot instructions with a sequence of larger fixed-length instructions'20026,446,197'Two modes for executing branch instructions of different lengths and use of branch control instruction and register set loaded with target instructions'20026,367,930'Process for preparing a photochromic lens'20026,356,997'Emulating branch instruction of different instruction set in a mixed instruction stream in a dual mode system'20026,324,643'Branch prediction and target instruction control for processor'20016,323,280'Flame retardant polycarbonate blends'2001RE037200'Color-stable polycarbonate composition and articles molded therefrom'20016,197,853'Polycarbonate composition resistant to gamma radiation'20016,197,854'Polycarbonate composition resistant to gamma radiation'20016,180,702'Flame retardant polycarbonate composition'20016,166,129'Photochromic polyurethanes'20006,153,685'Melt-stable pigmented polycarbonate molding composition'20006,107,395'Photochromic polyurethanes'20006,107,375'Hydrolysis-stable polycarbonate molding composition'20006,103,777'Thermoplastic composition suitable for optical applications having low haze values'20006,069,225'Polycarbonate composition useful in optical storage applications'20006,065,836'Photochromic ophthalmic lens'20006,046,301'Polycarbonate compositions having reduced tendency to splay'20006,008,280'Polycarbonate compositions having good mold-release properties'19995,998,520'Photochromic compositions having improved fade rate'19995,705,546'Polycarbonate compositions having improved release properties'19985,681,905'Gamma radiation-resistant blend of polycarbonate with polyester'19975,596,034'Polycarbonate compositions having mold-release properties'19975,508,344'Low temperature drying of impact modified polycarbonate/polyester compositions'19965,484,828'Color-stable polycarbonate composition and articles molded therefrom'19965,405,892'Melt-stable, pigmented polycarbonate composition'19955,250,635'Polycarbonate composition with reduced drip rate on burning'19935,194,495'Pigmented polycarbonate composition having high impact strength and good cosmetics'19935,187,211'Gamma radiation resistant polycarbonate compositions'19935,124,377'Flame retardant polycarbonate composition having improved impact strength'19925,120,778'Flame retardant polycarbonate composition having improved impact strength'19925,109,045'Flame retardant polycarbonate compositions'19925,087,524'Article molded from a polycarbonate composition having improved platability'19925,086,097'Ultraviolet stabilizer for polycarbonate compositions'19925,025,056'Thermoplastic compositions having improved melt flow'19915,006,572'Gamma radiation resistant polycarbonate composition'19915,001,180'Release agents for polycarbonate molding compositions'19914,963,598'Gamma radiation resistant polycarbonate compositions'19904,948,666'Stain resistant polycarbonate panels'19904,880,864'Thermoplastic polycarbonates and blends with enhanced flame retardant properties'19894,874,802'Polycarbonate compositions resistant to gamma radiation'19894,873,271'Gamma radiation rsistant polycarbonate compositions'19894,851,453'Foamable molding compositions'19894,847,312'Hydrolytically stable polycarbonate composition comprising dicyclopentadienyl epoxy ether'19894,837,243'Foamable molding compositions'19894,828,921'Polycarbonate molding compositions'19894,816,504'Stabilized polycarbonates'19894,804,692'Gamma-radiation resistant polycarbonate compositions'19894,772,655'Pigmented, flame resistant polycarbonate compositions'19884,753,994'Flame retardant polycarbonate compositions'19884,751,250'Process for foaming thermoplastic'19884,737,523'Foamable molding compositions'19884,673,699'Flame retardant molding compositions'19874,650,823'Iron oxide pigmented, polycarbonate compositions'19874,632,949'Flame retarding agents for polycarbonates'19864,594,375'Bis-(imide-sulfonate) flameproofing agents, their preparation and their use for flameproofing in polycarbonate'19864,578,409'Flame retarding silanes'19864,558,162'4,4\'-Bis(4-hydroxyphenyl thio)biphenyls'19854,552,911'Polycarbonate molding compositions having improved flame retardance'19854,539,384'Polymers prepared from 4,4\'-bis(4-hydroxyphenyl thio)biphenyls'19854,535,143'Process for the preparation of copolycarbonates of sulfonyl diphenol'19854,515,937'Flame resistant sulfur-bearing copolycarbonate'19854,503,213'Process for the preparation of polycarbonates having N-alkyl-perfluoroalkyl sulfonamide terminal groups'19854,497,947'Polycarbonate compositions having improved heat deflection temperature'19854,477,637'Flame retardant alkylated polycarbonate compositions'19844,471,104'Process for the preparation of polycarbonates having sulfonanilide terminal groups'19844,463,163'Polycarbonate from 4,4\'-bis (4-hydroxyphenyl thio)biphenyls'19844,448,930'Polycarbonate blends having an improved impact strength'19844,446,297'Thermoplastic copolycarbonate from halogen free aromatic diol and halogenated thiodiphenol'19844,430,475'Alkylated aromatic polycarbonate compositions of improved impact strength'19844,426,514'Copolycarbonate from thiodiphenol having high melt flow rates'19844,425,456'Copolycarbonates based on bis(4-hydroxyphenyl)biphenyl disulfone'19844,346,211'Copolycarbonates prepared with 2,2\'-bis(p-hydroxyphenyl) 1,1,1,3,3,3-hexafluoropropane'19824,320,049'Flame retarding agents for polycarbonates'19824,306,055'Polycarbonates having sulfur-containing phenolic diols incorporated therein'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1986Patents assigned to MOBAY CHEMICAL CORP (17)· patent assignee history
1981–1985Based in New Martinsville, WV, US· patent location history
1982–1985Based in Moers, DE· patent location history
1984–2002Patents assigned to BAYER AG (26)· patent assignee history
1985–2002Based in Pittsburgh, PA, US· patent location history
1987–1992Patents assigned to MOBAY CORP (22)· patent assignee history
1992–1995Patents assigned to MILES INC (7)· patent assignee history
2001–2006Patents assigned to HITACHI LTD (8)· patent assignee history
2001–2007Based in Los Altos, CA, US· patent location history
2021Based in Memphis, TN, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BAYER AG261984–2002
MOBAY CORP221987–1992
MOBAY CHEMICAL CORP171981–1986
HITACHI LTD82001–2006
MILES INC71992–1995
Locations
LocationPatentsSpan
Pittsburgh, Pennsylvania, US551985–2002
Los Altos, California, US102001–2007
Moers, DE101982–1985
New Martinsville, WV, US61981–1985
Memphis, TN, US12021