Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Lars Stigsson — 25 Patents

SASunpine Ab: 5 patents #2 of 4Top 50%
CAChemrec Aktiebolag: 4 patents #2 of 7Top 30%
KAKvaerner Pulping Ab: 3 patents #20 of 92Top 25%
ANAndritz: 1 patents #175 of 159Top 115%
KAKvaerner Pulping Technologies Ab: 1 patents #20 of 56Top 40%
KAKvaerner Pulping Aktiebolag: 1 patents #2 of 23Top 9%
TATreetotextile Ab: 1 patents #5 of 7Top 75%
Bjärred, SE: #11 of 137 inventorsTop 9%
Overall (All Time): #158,593 of 4,157,543Top 4%
25 Patents All Time
Lars Stigsson has been granted 25 US patents while listed as an inventor at Sunpine Ab. The first was granted in 1986 and the most recent in June 2024. Lars Stigsson ranks #158,593 of 4,157,543 US inventors in our database (top 3.8%). Patent records list Lars Stigsson in Bjärred, SE.

Issued Patents All Time

Showing 1–25 of 25 patents

Patent #TitleCo-InventorsDate
12018835 Biomass upgrading system Christer Gustavsson, Anton Larsson, Martin Seemann, Henrik Thunman, David Pallarès +1 more 2024-06-25
11149221 Thermochemical conversion of biomass Erik Furusjo, Kentaro Umeki, Rikard Gebart 2021-10-19
10988707 Method for thermal treatment of tall oil pitch (TOP) Valeri Naydenov, Christian Hulteberg 2021-04-27
10138578 Alkali recycle in cellulose spinning process Bengt Hagström, Tobias Köhnke, Artur HEDLUND, Marta Bialik 2018-11-27
9719047 Biorefining of crude tall oil Valeri Naydenov, Johan Lundback 2017-08-01
9499767 Biorefining of crude tall oil Valeri Naydenov, Johan Lundback 2016-11-22
9221869 Recovery of phytosterols from residual vegetable oil streams Valeri Naydenov 2015-12-29
8735637 Conversion of crude tall oil to renewable feedstock for diesel range fuel compositions Valeri Naydenov 2014-05-27
8617354 Shaped cellulose manufacturing process combined with a pulp mill recovery system 2013-12-31
8252141 Method for recovering a low sodium content lignin fuel from black liquor Curt Lindstrom 2012-08-28
6946057 Alkaline process for the manufacturing of pulp using alkali metaborate as buffering alkali 2005-09-20
6770168 Process for oxygen pulping of lignocellulosic material and recorvery of pulping chemicals 2004-08-03
6336994 Totally chlorine free bleaching process using recovered filtrate Ake Backlund, Bengt Nilsson 2002-01-08
6143130 Polysulfide pulping process Mikael Linstrom 2000-11-07
5814189 Method for gasifying cellulose spent liquor to produce superheated steam and green liquor of low carbonate concentration Nils Bernard 1998-09-29
5746886 Method for the recovery of energy and chemicals from cellulose spent liquor containing potassium using a gasifier Ake Backlund 1998-05-05
5683549 Process for the partial combustion of cellulose spent liquor using twin fluid nozzle burner 1997-11-04
5628872 Method for bleaching pulp with hydrogen peroxide recovered from cellulosic spent liquor Ake Backlund, Ove Wallergard 1997-05-13
5556605 Method of seperating sulphur compounds 1996-09-17
5507141 Process for recovering energy from a combustible gas 1996-04-16
5352333 Process for the partial combustion of cellulose spent liquor using twin-fluid nozzle burner 1994-10-04
5205908 Purification of process gas from a partial combustion of black liquor Nils Bernhard 1993-04-27
4602970 Method of stabilizing emulsion explosives 1986-07-29
4599089 Coal-water dispersion Bjorn Lindman 1986-07-08
4580723 Method for atomizing dispersions or solutions containing particles 1986-04-08