Patrick M. Quinlan — 50 Patents at Petrolite

Patrick M. Quinlan has been granted 50 US patents while listed as an inventor at Petrolite. The first was granted in 1980 and the most recent in January 1988. Patrick M. Quinlan ranks #53,743 of 4,157,543 US inventors in our database (top 1.3%). Patent records list Patrick M. Quinlan in Webster Groves, MO, US.

Issued Patents All Time

Showing 1–25 of 50 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4720492	Quaternary ammonium derivatives of 1,4-thiazine sulfonic acids	—	1988-01-19	$2,544,000
4670186	Acid inhibitor composition	—	1987-06-02	$2,392,000
4578243	Inhibiting corrosion with quaternary ammonium derivatives of 1,4-thiazine sulfonic acids	—	1986-03-25	$1,767,000
4569992	Quaternary ammonium derivatives of 1,4 thiazine sulfonic acids	—	1986-02-11	$804,000
4559163	Halide free octahydrophenanthridine corrosion inhibitors	—	1985-12-17	$1,668,000
4539140	Mixtures of non-halogen salts of nitrogen heterocyclics and nitrogen-sulfur heterocyclics	—	1985-09-03	$699,000
4525296	Halide free corrosion inhibitors	—	1985-06-25	$1,545,000
4522643	Use of quaternized derivatives of polymerized pyridines and quinolines as microbiocides	—	1985-06-11	$1,671,000
4514320	Halide free corrosion inhibitors	—	1985-04-30	$1,901,000
4494977	Quaternary ammonium salts of .alpha.-1,4-thiazine alkanephosphonic acids	—	1985-01-22	$889,000
4418195	Silicon-containing quaternary ammonium thiazines	—	1983-11-29	$1,804,000
4372775	Inhibition of microbiological growth with thiazine quaternary ammonium salts of polyepihalohydrin	—	1983-02-08	$1,107,000
4371497	Inhibition of corrosion with thiazine quaternary ammonium salts of polyepihalophydrin	—	1983-02-01	$781,000
4361555	.alpha.-1,4-Thiazine alkanephosphonic acids	—	1982-11-30	$2,165,000
4358382	Use of quaternized derivatives of polymerized pyridines and quinolines as water clarifiers	—	1982-11-09	$2,551,000
4354945	Clarification process with thiazine quaternary ammonium salts of polyepihalohydrin	—	1982-10-19	$1,992,000
4346217	Di-quaternary ammonium salts of .alpha.-1,4-thiazine alkanephosphonic acids	—	1982-08-24	$972,000
4343720	Quaternary alkynoxymethyl amines	—	1982-08-10	$193,000
4342584	Microbiocidal process using di-quaternary ammonium salts of .alpha.-1,4-thiazine alkanephosphonic acids	—	1982-08-03	$1,604,000
4341657	Use of quaternized derivatives of polymerized pyridines and quinolines as corrosion inhibitors	—	1982-07-27	$887,000
4339347	Use of quaternized derivatives of polymerized pyridines and quinolines as demulsifiers	—	1982-07-13	$864,000
4336156	Quaternary ammonium salts of .alpha.-1,4-thiazine alkanephosphonic acids	—	1982-06-22	$1,778,000
4332799	Quaternaries of tertiary amino-substituted thiazines	—	1982-06-01	$795,000
4331554	Demulsification process with thiazine quaternary ammonium salts of polyepihalohydrin	—	1982-05-25	$2,396,000
4323461	Process of inhibiting scale formation in aqueous systems using di-quaternary ammonium salts of .alpha.-1,4-thiazine alkanephosphonic acids	—	1982-04-06	$804,000

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Patrick M. Quinlan — 50 Patents

Issued Patents All Time

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