PH

Paul D. Hammesfahr

DD Dentsply Research And Development: 23 patents #1 of 167Top 1%
DI Dentsply International: 10 patents #6 of 235Top 3%
CE Ceramco: 1 patents #3 of 10Top 30%
DS Dentsply Sirona: 1 patents #179 of 352Top 55%
📍 Wyoming, DE: #1 of 11 inventorsTop 10%
🗺 Delaware: #167 of 7,163 inventorsTop 3%
Overall (All Time): #98,742 of 4,157,543Top 3%
35
Patents All Time

Issued Patents All Time

Showing 1–25 of 35 patents

Patent #TitleCo-InventorsDate
9944723 Photopolymerizable compositions featuring novel amine accelerator for improved color stability and reduced polymerization stress thereby Xiaoming Jin 2018-04-17
9522967 Photopolymerizable compositions featuring novel amine accelerator for improved color stability and reduced polymerization stress thereby Xiaoming Jin 2016-12-20
9427382 Method and composition for adhering to tooth structure Junjie Jeffrey Sang 2016-08-30
9315598 Low stress flowable dental compositions Xiaoming Jin 2016-04-19
9169332 Photopolymerizable and photocleavable resins and low shrink and low stress composite compositions Xiaoming Jin 2015-10-27
9155685 Low stress flowable dental composition Xiaoming Jin, Louis Bertrand, Qizhou Dai, Michael O'Connor, Bernard Koltisko 2015-10-13
9078815 Self-cure activator Huaibing Liu, Gregory J. Pomrink 2015-07-14
8461227 Radical polymerizable macrocyclic resin compositions with low polymerization stress Xiaoming Jin 2013-06-11
8167509 Packaged dental composition Paul Pierson 2012-05-01
8129446 Radical polymerizable macrocyclic resin compositions with low polymerization stress Xiaoming Jin 2012-03-06
7959370 Packaged dental composition Paul Pierson 2011-06-14
6783810 Reducing polymerization stress by controlled segmental curing Xiaoming Jin 2004-08-31
6696507 Dental composite restorative material and method of restoring a tooth John Subelka, Steven R. Jefferies, Donald Kapperman, Paul A. Silver 2004-02-24
6612465 Multi-component mixing storage and dispensing device Paul Pierson 2003-09-02
6500879 Dental composition and method Chin-Teh Huang, Kewang Lu, Mingxin Fan 2002-12-31
6391940 Method and composition for adhering to metal dental structure Gordon Blackwell, Kewang Lu, Chin-Teh Huang, Mingxin Fan, Xiuling Wang +1 more 2002-05-21
6387980 Dental composition system and method Kewang Lu 2002-05-14
6353040 Dental composite restorative material and method of restoring a tooth John Subelka, Steven R. Jefferies, Donald Kapperman, Paul A. Silver 2002-03-05
6262142 Translucent wear resistant dental enamel material and method Xiuling Wang, John Subelka, Steven R. Jefferies, Paul A. Silver 2001-07-17
6211264 Dental composition system and method Kewang Lu 2001-04-03
6191190 Method and composition for adhering to tooth structure Gordon Blackwell, Kewang Lu, Chin-Teh Huang, Mingxin Fan 2001-02-20
5981620 Dental compounds, compositions, products and methods Kewang Lu, Paul A. Silver 1999-11-09
5973022 Dental composition system and method Kewang Lu 1999-10-26
5955514 Dental composition and method Chin-Teh Huang, Kewang Lu, Mingxin Fan 1999-09-21
5906490 Dental product, shading kit and method Carolyn M. Kramer Primus 1999-05-25