Inventor
Mark E. Williams
Inventor
Newark, DE, US
Overview
Patents· 79 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C12Qprimary
C12QMeasuring or testing processes involving enzymes, nucleic acids or microorganisms16%
C07KPeptides12%
C12NMicroorganisms or enzymes12%
G01NInvestigating or analysing materials by determining their chemical or physical properties10%
E21BEarth or rock drilling7%
A61KPreparations for medical, dental or toiletry purposes7%
G06FElectric digital data processing4%
A01HNew plants or non-transgenic processes for obtaining them3%
A61BDiagnosis3%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices3%
PatentTitleYear
10,738,537Drill bits with stick-slip resistance202010,619,419Drill bit having improved journal bearings202010,519,721Nested bearing and seal for roller cone drill bit201910,458,186Sacrificial spacer for well tool inner seal20199,988,850Symmetrical seal20189,789,942'Large-scale watercraft storage system'20179,677,341'Drill bit with extended life seal'2017D0753801'Seal'20169,137,957'Producing maize plants having a high oil phenotype using a marker locus genetically linked with a QTL6 region'20159,121,032'Selective ablation of diploid embryos'20158,960,689'High misalignment wheel drive'20158,859,846'Doubling of chromosomes in haploid embryos'2014D0713302'Drive train yoke'20148,748,576'Compositions and polyeptides related to type 1 diacylgycerol O-acyltransferase (DGAT)'20148,652,070'Systems, devices, and methods for interpreting movement'20148,652,071'Systems, devices, and methods for interpreting movement'20148,535,247'Systems, devices and methods for interpreting movement'20138,319,010'Methods of producing maize plants having a high oil phenotype by detecting a marker locus genetically linked with a QTL6 region'20128,269,061'Selective ablation of diploid embryos'20128,084,208'Method of identifying maize plants having increased oil content using quantitative trait locus 6 (QTL6)'20118,007,450'Systems, devices, and methods for interpreting movement'20117,981,677'Identifying a high oil phenotype in maize by detecting a marker locus genetically linked with a QTL6 region'20117,838,263'Methods of identifying a plant with an Nsf1 locus'20107,812,216'Compositions related to the quantitative trait locus 6 (QTL6) in maize and methods of use'20107,728,462'Monolithic stage devices providing motion in six degrees of freedom'20107,705,200'Polynucleotide encoding a maize herbicide resistance gene and methods for use'20107,543,660'Roller cone drill bit with debris diverter plugs'20097,523,245'Compact ISA-bus interface'20097,487,737'Whistle structures'20097,485,045'Bonded drive shaft'20097,484,572'Roller cone drill bit with debris flow paths through associated support arms'20097,414,110'Human calcium channel compositions and methods'20087,370,601'Whistle structures'20087,217,862'Geranylgeranyl pyrophosphate synthases'20077,199,283'Geranylgeranyl pyrophosphate synthases'20077,063,950'Nucleic acids encoding human calcium channel and methods of use thereof'20066,988,598'Disc brake rotor mounting system'20066,855,868'Geranylgeranyl pyrophosphate synthases'20056,777,833'Magnetic levitation stage apparatus and method'20046,759,575'Barstar gene'20046,653,097'Human calcium channel compositions and methods'20036,627,795'Carotenoid biosynthesis enzymes'20036,528,630'Calcium channel compositions and methods'20036,410,827'Geranylgernayl pyrophosphate synthases'20026,387,696'Human calcium channel compositions and methods'20026,372,960'Barstar gene'20026,353,271'Extreme-UV scanning wafer and reticle stages'20026,138,177'System and method of pin programming and configuration'20006,096,514'Human calcium channel compositions and methods'20006,098,141'Compact ISA-bus interface'20006,090,623'Recombinant human calcium channel .beta..sub.4 subunits'20006,089,525'Six axis active vibration isolation and payload reaction force compensation system'20006,029,251'Method and apparatus for temperature sensing'20006,013,474'Calcium channel compositions and methods'20006,008,437'Use of anthocyanin genes to maintain male sterile plants'19995,977,433'Maintenance of male-sterile plants'19995,944,807'Compact ISA-bus interface'19995,890,002'System and method for bus master emulation'19995,881,271'System and method for clock management'19995,880,331'Use of anthocyanin genes to maintain male sterile plants'19995,876,958'Assays of cells expressing human calcium channels containing .alpha..sub.1 .beta. subunits'19995,874,236'DNA encoding human calcium channel .alpha.-.sub.1A, .beta..sub.1, .beta.-.sub.2, and .beta.-.sub.4 subunits, and assays using cells that express the subunits'19995,851,824'Human calcium channel .alpha.-1C/.alpha.-1D, .alpha.-2, .beta.-1, and .gamma.subunits and cells expressing the DNA'19985,846,757'Human calcium channel .alpha..sub.1, .alpha..sub.2, and .beta. subunits and assays using them'19985,792,846'Human calcium channel compositions and methods'19985,755,576'Device and method for testing dexterity'19985,750,867'Maintenance of male-sterile plants'19985,740,871'Flow diverter ring for a rotary drill bit and method'19985,710,250'Calcium channel Alpha 2 subunit polypeptides'19985,699,621'Positioner with long travel in two dimensions'19975,686,241'Probes and assays for calcium channel .alpha..sub.2 subunit-encoding nucleic acids'19975,631,618'Magnetic arrays'19975,618,720'Cells expressing calcium channel .alpha.2 subunit-encoding DNA, optionally with a reporter gene for screening assays'19975,570,750'Rotary drill bit with improved shirttail and seal protection'19965,513,711'Sealed and lubricated rotary cone drill bit having improved seal protection'19965,429,921'Assays for agonists and antagonists of recombinant human calcium channels'19955,407,820'Calcium channel .alpha.-2 subunit DNAs and cells expressing them'19955,201,376'Rock bit with improved gage insert'19934,945,779'Ball screw rotary actuator'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995–2008Based in Carlsbad, CA, US· patent location history
1997–2000Patents assigned to SIBIA NEUROSCIENCES INC (10)· patent assignee history
1999–2009Patents assigned to OPTI INC (7)· patent assignee history
1999–2009Based in San Jose, CA, US· patent location history
2002–2015Patents assigned to DU PONT (15)· patent assignee history
2002–2015Based in Newark, DE, US· patent location history
2006–2017Patents assigned to WILLIAMS MARK E (14)· patent assignee history
2006–2015Based in Louisville, CO, US· patent location history
2010–2015Patents assigned to PIONEER HI BRED INT (8)· patent assignee history
2018–2020Based in Conroe, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DU PONT | 15 | 2002–2015 |
| WILLIAMS MARK Eself | 14 | 2006–2017 |
| SIBIA NEUROSCIENCES INC | 10 | 1997–2000 |
| PIONEER HI BRED INT | 8 | 2010–2015 |
| OPTI INC | 7 | 1999–2009 |
Locations
| Location | Patents | Span |
|---|---|---|
| Newark, Delaware, US | 18 | 2002–2015 |
| Carlsbad, California, US | 17 | 1995–2008 |
| San Jose, California, US | 7 | 1999–2009 |
| Conroe, Texas, US | 5 | 2018–2020 |
| Louisville, CO, US | 4 | 2006–2015 |