John D. Pera — 20 Patents at Buckman Laboratories

John D. Pera has been granted 20 US patents while listed as an inventor at Buckman Laboratories. The first was granted in 1980 and the most recent in June 1995. John D. Pera ranks #214,803 of 4,157,543 US inventors in our database (top 5.2%). Patent records list John D. Pera in Memphis, TN, US.

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #	Title	Co-Inventors	Date
5424007	1-methyl-3,5,7-triaza-1-azoniatricyclodecane compounds, a method for preparing these compounds, their use in the control of microorganisms in aqueous systems, and their use in the inhibition of corrosion	S. Rao Rayudu	1995-06-13
5356548	1-methyl-3,5,7-triaza-1-azoniatricyclodecane compounds, a method for preparing these compounds, their use in the control of microorganisms in aqueous systems, and their use in the inhibition of corrosion	S. Rao Rayudu	1994-10-18
5245031	1-methyl-3,5,7-triaza-1-azoniatricyclodecane compounds, a method for preparing these compounds, their use in the control of microorganisms in aqueous systems, and their use in the inhibition of corrosion	S. Rao Rayudu	1993-09-14
5073638	Process for the production of 2-thiocyanomethylthiobenzothiazole	Lawrence S. Conaway, Marc F. Nagel	1991-12-17
5066334	Fungicidal and corrosion inhibiting paint pigments	Loel L. Hickman, Lawrence S. Conoway	1991-11-19
5061797	1-methyl-3,5,7-triaza-1-azoniatricyclodecane compounds	S. Rao Rayudu	1991-10-29
5051124	Microbicidal compositions of dimethylamine-epichlorohydrin amines	—	1991-09-24
4970211	Ionene polymeric compositions, their preparation and use	Joseph G. E. Fenyes	1990-11-13
4920107	1-methyl-3,5,7-triaza-1-azoniatricyclodecane compounds, a method for preparing these compounds, and their use in the control of microorganisms in aqueous systems	S. Rao Rayudu	1990-04-24
4851532	Ionene polymeric compositions, their preparation and use	Joseph G. E. Fenyes	1989-07-25
4778813	Polymeric quaternary ammonium compounds, their preparation and use	Joseph G. E. Fenyes	1988-10-18
4581058	Polymeric quaternary ammonium compounds and their uses	Joseph G. E. Fenyes	1986-04-08
4505831	Method of preservation of aqueous systems by addition to said systems of quaternary ammonium salts of hexamethylenetetramine	Joseph G. E. Fenyes	1985-03-19
4506081	Polymeric quaternary ammonium compounds and their uses	Joseph G. E. Fenyes	1985-03-19
4374040	Aminoalkylenephosphonic acids and salts thereof and their use in aqueous systems	Joseph G. E. Fenyes	1983-02-15
4293559	Slime control compositions and methods of using the same	John D. Buckman, Stanley J. Buckman, Betty S. Johnson	1981-10-06
4285765	Slime control compositions and methods of using the same	Betty S. Johnson	1981-08-25
4250269	Water-soluble mixtures of quaternary ammonium polymers, nonionic and/or cationic vinyl-addition polymers, and nonionic and/or cationic surfactants	Robert H. Buckman, Philip M. Hoekstra	1981-02-10
4243524	Aminoalkylenephosphonic acids and salts thereof and their use in aqueous systems	Joseph G. E. Fenyes	1981-01-06
4181806	Aminoalkylenephosphonic acids and salts thereof and their use in aqueous systems	Joseph G. E. Fenyes	1980-01-01

John D. Pera — 20 Patents

Issued Patents All Time

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