John Curtis — 11 Patents at Ulano

John Curtis has been granted 11 US patents while listed as an inventor at Ulano. The first was granted in 1983 and the most recent in August 1995. John Curtis ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list John Curtis in Salisbury, NJ, GB.

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Showing 1–11 of 11 patents

Patent #	Title	Co-Inventors	Date
5445916	Photosensitive compositions	—	1995-08-29
5360864	Process for preparation of photosensitive composition	—	1994-11-01
5358999	Process for preparation of photosensitive compositions of stilbazolium quaternary	—	1994-10-25
5330877	Photosensitive compositions containing stilbazolium groups	—	1994-07-19
5326669	Photosensitive compositions	—	1994-07-05
4602097	Water soluble photoinitiator benzophenone and thioxanthenone ethoxy-ether derivatives	—	1986-07-22
4564581	Process of preparing screen stencil using diazo photosensitive compositions with acidic p-H indicator	John D. Renwick	1986-01-14
4499175	Photopolymerizable materials for use in producing screen printing stencils	John D. Renwick	1985-02-12
4499176	Photopolymerizable composition for producing screen printing stencils	John D. Renwick	1985-02-12
4459416	Water soluble thioxantone photoinitiators	Peter Ellison Heaton	1984-07-10
4418138	Photopolymerizable materials for use in producing stencils for screen printing	—	1983-11-29

John Curtis — 11 Patents

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