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SAPPI LTD

Overview
  • Total Patents
    51
About

SAPPI LTD has a total of 51 patent applications. Its first patent ever was published in 1975. It filed its patents most often in South Africa, Brazil and Australia. Its main competitors in its focus markets textiles and paper, macromolecular chemistry and polymers and materials and metallurgy are COLUMBIA CELLULOSE COMPANY LTD, MEI XIUQUAN and IMPCO VOEST ALPINE PULP TECH.

Patent filings per year

Chart showing SAPPI LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Davies Christopher John 9
#2 Raubenheimer Stephanus Jacobus 9
#3 Birkett Michael David 7
#4 Bohmer Volkmar Johann 5
#5 Weightman Derek Andrew 5
#6 Graveson Ian 5
#7 Maboka Sydney 5
#8 Mobius Heinzhorst 5
#9 Boehmer Volkmar Johann 4
#10 Wojtowicz W 3

Latest patents

Publication Filing date Title
ZA200207476B Produce container.
ZA200204532B Process for bio-utilization of industrial waste water.
ZA200203513B Biobleaching of ligno-cellulose pulp.
WO02074813A1 Pulp treatment and process
ZA200106522B Timber process and product.
WO0046306A1 Timber process and product
ZA9604590B Biosulphite pulping and biobleaching for producing dissolving pulp
ZA9604589B Biobleaching of sulphite pulp for producing dissolving pulp
PT96722A Process for the production of pulp from a material containing lignocellulose
ZA9100917B A process for producing pulp from a lignocellulosic-containing material
ZA8906394B Elimination of bleach effluents
FI893844A0 Eliminering av blekningsavloppsvaetskor.
ZA8606715B Direct recovery of sodium hydroxide from spent pulping liquors
AU2485677A Chemical recovery in soda process
ZA7602995B Improvements relating to recovery of chemicals
ZA7506193B Improvements relating to recovery of chemicals