DF

Donald T. Freese

BL Betz Laboratories: 10 patents #19 of 225Top 9%
BE Betzdearborn: 5 patents #21 of 202Top 15%
WG W.L. Gore & Associates Gmbh: 3 patents #328 of 1,175Top 30%
📍 Waikui, HI: #1 of 6 inventorsTop 20%
🗺 Hawaii: #70 of 2,560 inventorsTop 3%
Overall (All Time): #257,378 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
10367217 Membrane electrode assembly manufacturing process F. Colin Busby 2019-07-30
9018264 Aqueous delivery system for low surface energy structures 2015-04-28
8851294 Aqueous delivery system for low surface energy structures 2014-10-07
6099755 Method and composition for inhibiting scale and controlling corrosion in cooling water systems Stephen M. Kessler 2000-08-08
5866032 Composition for controlling scale formation in aqueous systems William S. Carey, Libardo A. Perez, Judith L. Barron 1999-02-02
5866013 Method for inhibiting scale and controlling corrosion in cooling water systems Stephen M. Kessler 1999-02-02
5616278 Inhibition of scale and corrosion in aqueous systems William S. Carey, Andrew Solov, Libardo A. Perez 1997-04-01
5575920 Method of inhibiting scale and controlling corrosion in cooling water systems Libardo A. Perez, Keith A. Bair, Fu Chen 1996-11-19
5518629 Methods for controlling scale formation in acqueous systems Libardo A. Perez, William S. Carey, Judith B. Rockett 1996-05-21
5518630 Method for controlling scale formation and deposition Libardo A. Perez 1996-05-21
5489666 Control of scale formation in aqueous systems William S. Carey, Andrew Solov, Libardo A. Perez 1996-02-06
5401311 Method for removing deposits from cooling water systems Raymond Post, David M. Polizzotti 1995-03-28
5401323 Method for removing clay deposits from cooling water systems Raymond Post, Edmund J. Bockowski 1995-03-28
5378372 Control of scale formation in aqueous systems William S. Carey, Andrew Solov, Libardo A. Perez 1995-01-03
5378390 Composition for controlling scale formation in aqueous systems Libardo A. Perez, Judith B. Rockett, William S. Carey 1995-01-03
5326478 Methods for controlling scale formation in aqueous systems Libardo A. Perez, Judith B. Rockett, William S. Carey 1994-07-05
5271862 Inhibition of silica and silicate deposition in cooling water systems 1993-12-21
5158685 Inhibition of silica and silicate deposition in cooling water systems 1992-10-27