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PENNWALT CORP

Overview
  • Total Patents
    4,126
About

PENNWALT CORP has a total of 4,126 patent applications. Its first patent ever was published in 1949. It filed its patents most often in United States, Canada and Japan. Its main competitors in its focus markets organic fine chemistry, macromolecular chemistry and polymers and machines are MONSANTO CO, MONSANTO CHEMICALS and UNIROYAL CHEM CO INC.

Patent filings per year

Chart showing PENNWALT CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Macleay Ronald Edward 65
#2 Sandler Stanley R 63
#3 Griffith Ronald C 47
#4 Buchholz Bernard 46
#5 Sanchez Jose 45
#6 Macleay Ronald E 43
#7 Sandler Stanley Robert 41
#8 Gardner David Milton 41
#9 Georgiev Vassil S 38
#10 Sheppard Chester Stephen 38

Latest patents

Publication Filing date Title
PH26837A Tetrahalophtlate tetrahalopthalate esters as flame retardants for styrene maleic amhydride copolymer (SMA) resins
JPH02197183A Laminated piezoelectric structure and its formation
JPH02144589A Novel electroacoustic article
JPH03112960A Amino or hydrazino peroxide, derivative of the same, and their use
US5107120A Passive infrared detector
US4925903A Process of making a polymer containing hindered amine light stabilizing groups and polymer made thereby
US4944853A Photochemical preparation of 3-(organothio) aldehydes
EP0364703A2 Process for preparing sulfur solvent compositions
US4910335A Decolorization of alkanesulfonic and arenesulfonic acids
US4956494A Oxidation of thiols, disulfides and thiolsulfonates
EP0355289A1 Accelerometer
US4950364A Process for the separation of 1,1-dichloro-1-fluoroethane and 1,1,1,3,3-pentafluorobutane
US4869844A High solids liquid alkaline cleaners
WO9009408A1 Reactive hindered amine light stabilizers
US4904894A Hail sensor
EP0333987A2 Halogenated polyester flame retardants for polyphenylene ether resins
US4885347A Polymer containing hindered amine light stabilizing groups and process of making the same
EP0331864A1 Preparation of alkanesulfonyl halides and alkanesulfonic acids
US4876048A Purification of alkanesulfonyl chlorides
US4895977A Purification of alkanesulfonic acids using ozone