Inventor · Dieburg, DE

Walter Spiess

18Patents
8h-index
24Co-inventors
68Inventor score

Filing activity: May 1, 1991 → Apr 9, 2003

Most-cited inventions

PatentTitleAreaCited byStatus
US5498506A Positive-acting radiation-sensitive mixture and recording material produced therewith Physics 18 Expired
US5424166A Negative-working radiation-sensitive mixture containing diazomethane acid generator and a radiation-sensitive recording material produced therfrom Physics 17 Expired
US5364734A Postive-working radiation-sensitive mixture and radiation-sensitive recording material produced therewith Emerging Cross-Sectional Technologies 17 Expired
US5716756A Sulfonic acid esters, radiation-sensitive mixtures prepared therewith and their use Physics 15 Expired
US5229254A Positive-working radiation-sensitive mixtures, and radiation-sensitive recording materials produced with these mixtures Physics 14 Expired
US5230985A Negative-working radiation-sensitive mixtures, and radiation-sensitive recording material produced with these mixtures Physics 12 Expired
US5356752A Compounds with acid-labile protective groups useful in positive-working radiation-sensitive mixtures Emerging Cross-Sectional Technologies 12 Expired
US5286867A Substituted 1-sulfonyloxy-2-pyridones and process for preparing them Physics 9 Expired
US5286602A Acid-cleavable compounds, positive-working radiation-sensitive mixture containing these compounds, and radiation-sensitive recording material produced with this mixture Emerging Cross-Sectional Technologies 8 Expired
US5401608A Negative-working radiation-sensitive mixture and radiation-sensitive recording material produced therewith Emerging Cross-Sectional Technologies 8 Expired
US5612164A Positive photoresist composition comprising a mixed ester of trishydroxyphenyl ethane and a mixed ester of trihydroxybenzophenone Physics 6 Expired
US5346804A Acid-cleavable radiation-sensitive compounds, positive working radiation-sensitive mixture containing theses compounds, and radiation-sensitive recording material produced with this mixture Emerging Cross-Sectional Technologies 5 Expired
US7431858B2 Nanoimprint resist Physics 5 Expired
US5298364A Radiation-sensitive sulfonic acid esters and their use Emerging Cross-Sectional Technologies 5 Expired
US5346806A Acid-cleavable radiation-sensitive compounds, radiation-sensitive mixture containing these compounds, and radiation-sensitive recording material produced with this mixture Emerging Cross-Sectional Technologies 5 Expired
US5256517A Positive-working radiation-sensitive mixture and recording material for exposure to UV radiation containing polyfunctional compound having .alpha.-.beta.-keto ester units and sulfonate units Physics 4 Expired
US6063545A Negative-working radiation-sensitive mixture, and radiation-sensitive recording material produced with this mixture Emerging Cross-Sectional Technologies 1 Expired
US5442061A Radiation-sensitive sulfonic acid esters and their use Emerging Cross-Sectional Technologies 0 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.