HELLMA MATERIALS GMBH & CO. KG

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 6200
 
  
 
C30B SINGLE-CRYSTAL GROWTH 452
 
  
 
B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE 255
 
  
 
C09K MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR293
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF178
 
  
 
G01J MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY 177
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 1204
 
  
 
H01S DEVICES USING STIMULATED EMISSION191

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8673179 Scintillation materials of low oxygen content and process for producing sameOct 07, 10Mar 18, 14[C09K]
8496851 Scintillation materials in single crystalline, polycrystalline and ceramic formAug 20, 10Jul 30, 13[C09K]
7968074 Method for making low-stress large-volume crystals with reduced stress birefringence and more uniform refractive index and crystals made therebyFeb 22, 05Jun 28, 11[C01B, C30B]
7883578 lens blanks especially for 193 nm and 157 nm lithography with minimized deffectsFeb 23, 05Feb 08, 11[G01N]
7837969 single crystal made therebyMar 25, 09Nov 23, 10[C30B]
7825387 Method for quantitative determination of the suitability of crystals for optical components exposed to high energy densities, crystals graded in this way and uses thereofNov 10, 06Nov 02, 10[G01N]
7822093 Method and apparatus for changing the length of a laser pulseSep 22, 08Oct 26, 10[H01S]
7742156 Method of testing optical materials by irradiating with high energy density radiation, optical materials selected by said method and uses thereofMar 05, 09Jun 22, 10[G01N]
7688444 Method of determining laser stabilities of optical materials, crystals selected according to said method, and uses of said selected crystalsAug 14, 07Mar 30, 10[G01J]
7588637 Production of high-purity, large-volume monocrystals that are especially radiation-resistant from crystal shardsDec 12, 06Sep 15, 09[C30B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2011/0084,210 Process for producing a particularly strong scintillation material, a crystal obtained by said process and uses thereofAbandonedOct 07, 10Apr 14, 11[G01T, C30B, C01F]
2011/0084,233 Scintillation materials in single crystal or polycrystalline form with improved properties, especially light yield and strain birefringenceAbandonedOct 07, 10Apr 14, 11[C09K]
2011/0085,957 Process for producing scintillation materials of low strain birefringence and high refractive index uniformityAbandonedOct 07, 10Apr 14, 11[C01F]
7873084 Arrangement and method for preventing the depolarization of linear-polarized light during the transmission of light through crystalsExpiredOct 18, 07Jan 18, 11[H01S]
2010/0111,820 METHOD OF DETERMINING LASER STABILITIES OF OPTICAL MATERIAL, CRYSTALS OBTAINED WITH SAID METHOD, AND USES OF SAID CRYSTALSAbandonedOct 29, 09May 06, 10[C01F, G01T]
2009/0297,430 High-purity large-volume monocrystals that are especially radiation-resistant and method of making them from crystalAbandonedAug 12, 09Dec 03, 09[C01F]
7534412 single crystals with reduced scattering and improved laser stability, and uses thereofExpiredMay 08, 08May 19, 09[C01F, C30B, C01D]
7393409 Method for making large-volume CaF.sub.2 single cystals with reduced scattering and improved laser stability, the crystals made by the method and uses thereofExpiredFeb 22, 05Jul 01, 08[C30B]
2007/0251,443 METHOD FOR MAKING LOW-STRESS LARGE-VOLUME NOT-(111)-ORIENTED CRYSTALS WITH REDUCED STRESS BIREFRINGENCE AND MORE UNIFORM REFRACTIVE INDEX AND CRYSTALS MADE THEREBYAbandonedJun 18, 07Nov 01, 07[C30B]
2007/0113,777 CaF2 single crystals with increased laser resistance, method for their preparation and use thereofAbandonedSep 07, 06May 24, 07[C30B]
2006/0201,412 Method of making highly uniform low-stress single crystals with reduced scatteringAbandonedMar 02, 06Sep 14, 06[C30B]
6989904 Method of determining local structures in optical crystalsExpiredJun 18, 03Jan 24, 06[G01B]
6969502 Method and device for growing large-volume oriented monocrystalsExpiredMar 02, 01Nov 29, 05[C01B, C30B]
6932864 Method and apparatus for measuring the position of a phase interface during crystal growthExpiredApr 23, 02Aug 23, 05[C30B]
6894284 UV optical fluoride crystal elements for λ < 200nm laser lithography and methods thereforExpiredDec 11, 02May 17, 05[G02B, C30B]
6891980 Method and apparatus for analysis of schlierenExpiredMar 05, 02May 10, 05[G06K]
6740159 Method of making a fracture-resistant calcium fluoride single crystal and its useExpiredAug 28, 02May 25, 04[C30B]
6603547 Method for determination of the radiation stability of crystalsExpiredOct 11, 01Aug 05, 03[G01J]
6395657 Fluoride crystalline optical lithography lens element blankExpiredApr 16, 01May 28, 02[C03C]
6364946 Methods for growing large-volume single crystals from calcium fluoride and their usesExpiredMar 02, 01Apr 02, 02[C30B]

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