John Reffner — 14 Patents at Spectratech

John Reffner has been granted 14 US patents while listed as an inventor at Spectratech. The first was granted in 1991 and the most recent in September 2025. John Reffner ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list John Reffner in North Wales, PA, US.

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #	Title	Co-Inventors	Date
12421377	Heat aging-resistant and flexible polyolefin formulation	Qian Gou, Timothy J. Person, Paul J. Caronia, Yushan Hu	2025-09-23
11633729	Particles with radial variation	Kenneth Laughlin, Alfred K. Schultz, Oscar David Redwine, Robert L. Sammler, Andrew M. Savo	2023-04-25
11548955	Component addition polymerization	Andrew M. Savo, Alfred K. Schultz, Kenneth Laughlin	2023-01-10
11091614	Multiphase conductive polymer composite compositions	Paul J. Brigandi, Jeffrey M. Cogen	2021-08-17
6972409	Mid-infrared spectrometer attachment to light microscopes	Donald W. Sting, Robert V. Burch, Donald K. Wilks	2005-12-06
6907390	Miniaturized opto-electronic magnifying system	Donald W. Sting	2005-06-14
6693280	Mid-infrared spectrometer attachment to light microscopes	Donald W. Sting, Robert V. Burch, Donald K. Wilks	2004-02-17
5864139	Confocal microspectrometer system	Steven H. Vogel	1999-01-26
5616922	Optically coupled infrared transmitting composite internal reflecting elements	Milan Milosevic, Donald W. Sting	1997-04-01
5581085	Infrared microspectrometer accessory	William T. Wihlborg	1996-12-03
5200609	Radiant energy spectroscopy system with diamond internal reflection element	Donald W. Sting	1993-04-06
5172182	Internal reflectance element with very small sample contacting surface	Donald W. Sting	1992-12-15
5051602	Optical system and method for sample analyzation	Donald W. Sting, Robert G. Messerschmidt	1991-09-24
5019715	Optical system and method for sample analyzation	Donald W. Sting, Robert G. Messerschmidt	1991-05-28

John Reffner — 14 Patents

Issued Patents All Time

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