Francisco Quisumbing

Francisco Arguelles Quisumbing is said to be a Filipino botanist claimed to be the inventor of Quink ink[1][2] used by The Parker Pen Company.

He travelled to the US and gained a PhD in Plant Taxonomy, Systematics and Morphology from the University of Chicago in 1923, under the American pensionado program.

[3] Quink, which was sold in the US from 1931, is claimed to stand for 'Quisumbing Ink', but there is no reliable evidence to support this.

The milestones of Quisumbing's documented career are close enough to those recounted in the apocryphal accounts that it is probable that they refer, with differing degrees of accuracy, to the same man.

[6] According to a book published in 1960, Quisumbing inks then enjoyed an exclusive contract to supply all branches of the Philippine government.