Learn more

PITTSBURGH PLATE GLASS CO

Overview
  • Total Patents
    6,242
About

PITTSBURGH PLATE GLASS CO has a total of 6,242 patent applications. Its first patent ever was published in 1898. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets machines, macromolecular chemistry and polymers and materials and metallurgy are LIBBEY OWENS FORD GLASS CO, PILKINGTON BROTHERS LTD and 3B-FIBREGLASS SPRL.

Patent filings in countries

World map showing PITTSBURGH PLATE GLASS COs patent filings in countries

Patent filings per year

Chart showing PITTSBURGH PLATE GLASS COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Christenson Roger M 141
#2 William Owen 129
#3 Muskat Irving E 113
#4 Franklin Strain 76
#5 Richardson Ronald E 73
#6 Lytle William O 64
#7 Bader Alfred R 61
#8 Vogel Henry A 60
#9 Fox John H 59
#10 Black Lloyd V 53

Latest patents

Publication Filing date Title
US3583882A Process for preparing elastomer coated glass fibers
ES352323A1 Automatic Control for Glass Drawing Process
US3607320A Phototropic glass-ceramic articles containing bismuth doped calcium tungstate crystals
ES352042A1 Manufacture of Glass
FR1546349A Method of forming silver films by pyrolysis
FR1545505A Pyrometer and resulting industrial control processes
FR1546039A Improvements to the toughening processes used in the manufacture of glass
FR1542360A Polycarbonate resins
FR1542025A Hydrofluorination process for acetylenic hydrocarbons
FR1541234A Method and apparatus for breaking sectioning of glass panels
US3391200A Novel diol and polymer thereof
FR1546634A Improved rubber-based adhesives
US3388982A Glass polishing composition containing an inorganic barium salt
US3388508A Glass polishing composition containing dissolved zirconium and zirconium oxide
FR1538684A Process for mining potassium chloride by dissolution
FR1546565A Automatic marking and cutting of glass sheets
FR1533520A Cross-linked pressure sensitive adhesive
FR1530782A Polyester resins resistant to chemicals based on dicyclohexanols and neopentyl glycol-type diols
FR1531748A Glass manufacturing process
US3413108A Glass forming machine having molds with movable bottom sections