U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!

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Examiner: Gray, Bruce


Primary examiner statistics: 288 patents; average approval time: 652 days
Assistant examiner statistics: 138 patents; average approval time: 725 days

Patents as Primary Examiner (view all)

Patent No. Patent Title:
5135926 Soft ଲ-adrenergic blocking agents
5130473 Dithiocarbamate compounds
5130454 Polytetrahydrofuran derivatives having terminal aromatic groups
5130435 Preparation of vinyl ethers
5124476 Process for the preparation of ଱-fluoroacryloyl derivatives
5124081 Amphiphilic lipid compounds, process for their preparation and th...
5122539 Allosteric hemoglobin modifiers useful for decreasing oxygen affi...
5118840 Method of crystallizing phenylalanine
5118836 Optically active fluorine-containing 3-hydroxybutyric acid esters...
5116869 2-substituted-2-cyclopentenones
5112862 3-methoximinopropionic esters and fungicides containing them
5110990 Process for recovery of phosphorus ligand from vaporized aldehyde
5107016 Process for the preparation of ଲ-hydroxybutyric acid esters
5105007 Phenylacetylglutamine (PAG) analytical test
5103040 6-fluoro-1,4-dihydroquinol-4-one-3-carboxylic acid derivatives an...
5103010 Diphenylethylene derivatives, pharmaceutical compositions contain...
5099060 Synthesis of amino acid-derived bioerodible polymers
5099021 Process for the preparation of pure, unsymmetrically disubstitute...
5097060 Process for crystallizing L-alpha-aspartyl-L-phenyl-alanine methy...
5095135 Process for the preparation of high-purity naphthalenecarboxylic ...
5095139 Oligopeptide antibiotics
5095140 Peroxide process for producing N-phosphonomethylglycine
5093514 Base-catalyzed dehydration of substituted cis-1,2-dihydroxyc...
5093518 Glycerol derivatives, their preparation process, cross-linking ...
5093040 Complex N-hydroxyimide compounds and their use as detergent addit...
5093366 Novel cinnamoylamide derivatives
5093367 Method of synthesis and novel compounds for pharmaceutical uses
5091562 Process for eliminating 1-carboxy-1-phosphonocyclopentan-3-one fr...
5091560 Method for synthesizing acyloxycarboxylic acids
5091557 Amino acid derivative having liquid crystal property and process ...
5089653 Process for the selective reduction of the 4-halogen in 2,4-...
5087732 Glutaric acid derivatives and preparation thereof
5087746 Process for the production of high purity tartaric acid
5087728 Process for producing carboxylic acids and esters thereof
5084480 Pentamidine salts useful in the treatment of pneumocystis carinii...
5082978 Selective monomethylation of phenolic compounds
5081150 Calcium lactate-glycerol adduct, a process for its preparation
5077430 Peroxide process for producing N-phosphonomethylglycine
5077427 Preparation of alpha-formylamino nitriles
5077312 Biologically active lipids binding membrane receptors

Patents as Assistant Examiner (view all)

Patent No. Patent Title:
4810417 Process for the simultaneous production of methanol synthesis gas...
4803299 Preparation of polytetramethylene ether glycol diesters having a ...
4803305 Isobutane oxidation in the presence of a soluble iron complex as ...
4803293 Tertiary amines
4801739 Oligomeric hydroxycarboxylic acid derivatives, their production a...
4797391 ((5,6-dichloro-3-oxo-9,9a-d isubstituted-2,3,9,9a-tetrahydrof...
4791123 Insecticidal triffluormethyl alkane derivatives
4788003 Partial oxidation of ash-containing liquid hydrocarbonaceous and ...
4788324 Preparation of o-(1-methoxy-2-chloro)-ethoxyphenyl N-methylcarbam...
4785133 Process for the preparation of alkyl 3-alkoxypropionates
4783213 Certain 2-(2-substituted benzoyl)-4-(substituted oxy or substitut...
4782192 Tricyclic alcohols, ethers and esters, process for preparing same...
4782188 Process for hydroformylation of unsaturated compounds using iron ...
4781751 Certain 2-(2-substituted benzoyl)-4-(substituted)-1,3-cyclohexane...
4778514 N-acyl amino acid derivative and process for production and use t...
4777289 Process for the preparation of alkylthioalkanoate salts
4772749 Process for the recovery of malic acid
4772631 Phenyl ethers
4762947 Process for producing 2,2-dimethyl-1,3-propanediol mono(hydroxypi...
4762551 Certain 3-(substituted thio)-2-benzoyl-cyclohex-2-enones
4760162 Inorganic acid salt of N-(1(S)-ethoxycarbonyl-3-phenylpropyl...
4758375 Conversion process
4752649 Perester photoinitiators
4740611 N,N'-disubstituted ureas
4740524 Alpha-halopyruvate oxime
4734535 Preparation of aliphatic chlorine compounds
4734518 Process for cosynthesis of ethylene glycol and dimethyl carbonate
4734120 Dipeptides containing C-terminal phosphinothricin, a process for ...
4734530 Novel hydroperoxide and use of same as intermediate for the prepa...
4732700 Partial oxidation of vanadium-containing heavy liquid hydrocarbon...
4730076 Process for producing ଱-aspartyl-phenylalanine ester
4723031 Processes for synthesizing substituted and unsubstituted aminoace...
4708819 Reduction of vanadium in recycle petroleum coke
4709090 Method of production of oxydicarboxylic acid salts
4707307 Granular magnesium salts
4707497 Phenylethanolaminotetralines, a process for their preparation and...
4705650 Process for the preparation of compounds halogenated ଱ to a...
4705894 Process for recovery of organic acids from aqueous solutions
4704404 Peroxygen-compounds
4701550 Process for preparing alkyl esters of methyltartronic acid
 
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