LL

Leonard J. Litkowski

US Usbiomaterials: 5 patents #2 of 23Top 9%
UN Unknown: 4 patents #4,220 of 83,584Top 6%
UB University Of Maryland, Baltimore: 2 patents #236 of 1,115Top 25%
UM University Of Maryland: 1 patents #209 of 857Top 25%
Overall (All Time): #664,360 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6365132 Methods and compositions for whitening teeth Gary D. Hack, David C. Greenspan 2002-04-02
6338751 Compositions containing bioactive glass and their use in treating tooth hypersensitivity Gary D. Hack, David C. Greenspan 2002-01-15
6244871 Bioactive glass compositions and methods of treatment using bioactive glass Gary D. Hack, David C. Greenspan 2001-06-12
6197342 Use of biologically active glass as a drug delivery system Paul D. Thut, David C. Greenspan 2001-03-06
6153221 Use of biogically active glass as a drug delivery system Paul D. Thut, David C. Greenspan 2000-11-28
6086374 Methods of treatment using bioactive glass Gary D. Hack, David C. Greenspan 2000-07-11
5972384 Use of biologically active glass as a drug delivery system Paul D. Thut, David C. Greenspan 1999-10-26
5735942 Compositions containing bioactive glass and their use in treating tooth hypersensitivity Gary D. Hack, David C. Greenspan 1998-04-07