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Inventor

William M. Hung

Inventor
Cincinnati, OH, US

Overview

72→
Patents
1979–2010
Patent span
Chemistry
Primary field (CPC C)

Patents· 72 as inventor

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

C07Dprimary
C07DHeterocyclic compounds32%
B41MPrinting, duplicating, marking, or copying processes30%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments6%
D06PDyeing or printing textiles5%
A61LMethods or apparatus for sterilising materials or objects in general4%
G02CSpectacles3%
G02BOptical elements, systems or apparatus3%
B29DProducing particular articles from plastics or from substances in a plastic state2%
B31BMaking containers of paper, cardboard or material worked in a manner analogous to paper2%
PatentTitleYear
7,683,039'Water soluble, randomly substituted partial N-, partial O-acetylated chitosan, preserving compositions containing chitosan, and processes for making thereof'20107,125,967'Water-soluble chitosan having low endotoxin concentration and methods for making and using the same'20066,716,970'Water soluble, randomly substituted partial N-partial O-acetylated chitosan, preserving compositions containing chitosan, and processes for making thereof'20046,462,884'Polymerizable composition and optical articles using the same'20025,500,024'Ultraviolet absorbing lenses and methods of manufacture thereof'19965,491,262'Bis{[1-(2-A-2-B)ethenyl]}[2-R.sup.2 -4-X-phenyl-or 1-(2-R.sup.2 -4-X-phenyl)ethenyl]methanes'19965,431,879'Method and container for sterilizing and disinfecting'19955,399,692'Ultraviolet absorbing benzophenone sulfonic acid derivatives'19955,352,245'Process for tinting contact lens'19945,298,033'Ultraviolet absorbing lenses and methods of manufacturing thereof'19945,098,445'Ultraviolet radiation absorbing agent for bonding to an ocular lens'19925,021,068'Tinted contact lens and method of manufacture thereof: reactive dye and quaternary phosphonium salt'19914,963,160'Reactive uv absorbing compositions and method of preparing lenses therefrom'19904,954,132'Tinted contact lens and method of tinting with reactive dye and quaternary ammonium salt'19904,929,250'Ultraviolet absorbing lenses and method of making the same'19904,895,958'3-aminophenyl-3-(phenylsulfonyl)-1,1-bis(aminophenyl/indol-3-yl) propenes'19904,870,050'Novel compounds, processes and marking systems'19894,795,736'Novel compounds, process and marking systems'19894,788,285'Indole-phthalide derivatives'19884,736,027'Indole-phthalide derivatives'19884,697,018'9-julolidinyl derivatives and process of preparing them'19874,688,059'Marking systems'19874,661,605'3-(ether and thioether)-3-(indolyl)-phthalides'19874,660,060'Imaging systems containing 3-(indol-3-yl)-3-(4-substituted aminophenyl)phthalides'19874,652,643'3-amido-7-disubstituted amino-10-carbonylphenothiazines'19874,639,750'Fluoran compounds and marking systems'19874,636,820'Compositions, process and systems'19874,632,783'Triphenylmethane dyestuffs'19864,618,684'Substituted indoles'19864,604,461'5-substituted-9-disubstituted amino-12-substituted carbonylbenzo[a]phenoxazines'19864,604,462'4-substituted amido-8-disubstituted aminoimidazophenoxazines'19864,604,458'3-substituted carbonyloxy-7-disubstituted amino-10-substituted carbonylphenothiazines'19864,595,536'Triphenylmethane dyestuff'19864,570,171'Electrochromic marking systems'19864,561,001'Electrochromic marking systems'19854,558,137'Bis phenyl (2 carboxylic acid or ester indol-3-yl)methanes'19854,551,740'Electrochromic and marking systems'19854,549,192'Electrochromic marking systems'19854,540,790'Certain 4-substituted-2,6-bis(heteroaryl)pyridines'19854,539,579'Compounds, processes and marking systems'19854,536,367'Method for sanitizing toilets'19854,536,368'Method for sanitizing toilets'19854,535,172'3(Ether and thioether) 3-(4-dialkylaminophenyl) phthalides'19854,515,971'5\'/6\'-Carboxyfluorans and derivatives thereof'19854,507,483'3-[(Substituted-amino)(thienyl)methyl]-1H-indoles'19854,494,989'Compounds, processes and marking systems'19854,485,242'3[(Alkoxy)(4-aminophenyl, 1-naphthyl or 1-biphenylyl)methyl]1H-indoles'19844,447,616'Pyridine containing benzoic acid derivatives'19844,446,321'4-Aryl-bis 2,6-(aminophenyl)pyridines'19844,431,819'3-(Pyrrolo and 3-indolyl)-3-diphenylamino substituted phthalides'19844,417,059'Diphenylamino and indolyl substituted pyromellitides'19834,414,399'5/6 Carboxyphthalides'19834,403,791'Carbonless duplicating and marking systems'19834,398,030'3-[(Substituted-amino)(aryl)methyl]-1H-indoles'19834,396,767'2,6-Bis(heteroaryl)pyridines'19834,363,503'Pyridine color formers'19824,343,493'Duplicating and marking systems'19824,341,402'Systems employing indole color formers'19824,337,340'Processes for preparing substituted furopyridinones and furopyrazinones'19824,321,369'Compositions, process and systems'19824,307,898'Carbonless duplicating and marking systems'19814,298,215'Carbonless duplicating and marking systems'19814,283,077'Indole color former'19814,257,954'Novel compounds, processes and marking systems'19814,255,577'Process and intermediates for preparing 3-[4-(disubstituted-amino)phenyl] o r'19814,251,092'Pressure sensitive carbonless duplicating systems and thermal marking systems'19814,243,250'Carbonless duplicating systems'19814,211,872'Substituted furopyridinones and furopyrazinones'19804,200,313'Carbonless duplicating systems'19804,187,223'3-[4-(Disubstituted-amino)phenyl]-3-(diphenylamino)phthalides'19804,182,714'Carbazole containing phthalides'19804,168,378'3-(9-Julolidinyl)-3-(diphenylamino)phthalides'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1984Patents assigned to STERLING DRUG INC (25)· patent assignee history
1979–1990Based in Cincinnati, OH, US· patent location history
1985–1996Patents assigned to HILTON DAVIS CHEMICAL CO (27)· patent assignee history
1989–1990Patents assigned to HILTON DAVIS CO (3)· patent assignee history
1989–2010Based in Alpharetta, GA, US· patent location history
1990–1996Patents assigned to CIBA GEIGY CORP (10)· patent assignee history
2004–2010Patents assigned to ADJUVANT PHARMACEUTICALS LLC (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HILTON DAVIS CHEMICAL CO271985–1996
STERLING DRUG INC251979–1984
CIBA GEIGY CORP101990–1996
ADJUVANT PHARMACEUTICALS LLC32004–2010
HILTON DAVIS CO31989–1990
Locations
LocationPatentsSpan
Cincinnati, OH, US561979–1990
Alpharetta, Georgia, US161989–2010