HJ

Harlan B. Johnson

PI Ppg Industries: 15 patents #47 of 1,216Top 4%
📍 Rittman, OH: #9 of 88 inventorsTop 15%
🗺 Ohio: #4,899 of 73,341 inventorsTop 7%
Overall (All Time): #328,856 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
5326391 Microporous material exhibiting increased whiteness retention Barbara J. Anderson, Paul L. Benenati, Thomas A. Rechlicz, William Andrus Williams 1994-07-05
5071645 Process of producing an active agent delivery device Linda P. Reinhardt 1991-12-10
5035886 Active agent delivery device Paritosh M. Chakrabarti, Malcolm Korach, Dennis D. Leatherman, Robert R. Simmons 1991-07-30
5009971 Gas recombinant separator Samuel B. Laferty, Melvin P. Wagner, Shantilal M. Mohnot 1991-04-23
5009806 Calcium hypochlorite article Charles R. Wiedrich, Ernie Allen, Peter P. Howell 1991-04-23
4970020 Calcium hypochlorite composition Charles R. Wiedrich, Ernie Allen, Peter P. Howell 1990-11-13
4959208 Active agent delivery device Paritosh M. Chakrabarti, John M. Denison, Malcolm Korach, Dennis D. Leatherman, Linda P. Reinhardt +2 more 1990-09-25
4865760 Calcium hypochlorite composition Charles R. Wiedrich, Ernie I. Allen, Peter P. Howell 1989-09-12
4849297 Article having a corrosion inhibiting coating J. Douglas Mansell, Laurence E. Jones, Thomas G. Krivak, Dennis W. Carson 1989-07-18
4837253 Corrosion inhibiting pigment J. Douglas Mansell, Laurence E. Jones, Thomas G. Krivak, Dennis W. Carson 1989-06-06
4681750 Preparation of amorphous, precipitated silica and siliceous filler-reinforced microporous polymeric separator Thomas G. Krivak, David A. Longhini 1987-07-21
4329209 Process using an oxidant depolarized solid polymer electrolyte chlor-alkali cell 1982-05-11
4313813 Fixed bed oxygen depolarized cathode chlor-alkali cell Ronald D. Chamberlin 1982-02-02
4253924 Solid polymer electrolyte chlor-alkali process 1981-03-03
4244793 Brine electrolysis using fixed bed oxygen depolarized cathode chlor-alkali cell Ronald D. Chamberlin 1981-01-13