Topic leaderboard
Chemical treatment of skins, hides or leather
Ranked by the PatentIndex Score — a 1–99 percentile within C14C · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest C14C patents became public in the last 2 years — the current frontier
- 199Dusko Ilic8 patents · 32 citations
- 296Ingvar Helgason8 patents · 32 citations
- 392Bi Shi3 patents · 0 citations
- 488Georg Roentgen2 patents · 0 citations
- 583Jianfei Zhou2 patents · 0 citations
- 679Wenhua Zhang2 patents · 0 citations
- 775Yanan Wang2 patents · 0 citations
- 871Yue Yu2 patents · 0 citations
- 967Yunhang Zeng2 patents · 0 citations
- 1063MAHFOUZ GRACE NABIL1 patents · 0 citations
- 1158Adilson Candido Da Silva1 patents · 0 citations
- 1254Daryl Miles Cassingham1 patents · 0 citations
- 1350Jadson Claudio Belchior1 patents · 0 citations
- 1446Jean-Christophe Graciet1 patents · 0 citations
- 1542Laszlo Fekete1 patents · 0 citations
- 1638Luiz Carlos Alves De Oliveira1 patents · 0 citations
- 1733Marcio De Figueiredo Portilho1 patents · 0 citations
- 1829Michael Nicollet1 patents · 0 citations
- 1925Takahiro Hioki1 patents · 0 citations
- 2021APSIMON ROBERT1 patents · 0 citations
- 2117D'ANVERS FRÉDÉRIC FRANÇOIS BERT1 patents · 0 citations
- 2213DANISCH PETER1 patents · 0 citations
- 238GAMARINO ROBERTA1 patents · 0 citations
- 244JUNGINGER TOBIAS1 patents · 0 citations
- 251QIANG GUOQIANG1 patents · 0 citations
Active· last 5 yrs
Sustained C14C output across the last 5 years
- 199Darryl Miles Cassingham6 patents · 39 citations
- 296Andrew Shaw6 patents · 32 citations
- 392David A. Estell6 patents · 32 citations
- 488Eugene Steven Sadlowski6 patents · 32 citations
- 583Hiroshi Oh6 patents · 32 citations
- 679Louise Wallace6 patents · 32 citations
- 775Sang-Kyu Lee6 patents · 32 citations
- 871Dusko Ilic8 patents · 32 citations
- 967Ingvar Helgason8 patents · 32 citations
- 1063Edwin Nungesser7 patents · 86 citations
- 1158Kenneth Graham Press9 patents · 14 citations
- 1254Robert Horst Hein9 patents · 14 citations
- 1350Ronaldus Wilhelmus Hommes3 patents · 6 citations
- 1446Juergen Reiners4 patents · 46 citations
- 1542Bertrand Louis Julien Lenoble2 patents · 14 citations
- 1638Enrico Mortarino2 patents · 5 citations
- 1733Gregory H. Altman2 patents · 5 citations
- 1829Pu Luo3 patents · 3 citations
- 1925Tatsuaki Ujiie2 patents · 7 citations
- 2021Joy A. Gallagher2 patents · 3 citations
- 2117Philip R. Harsh2 patents · 3 citations
- 2213Dieter Jancart3 patents · 3 citations
- 238Omer Suat Mamat2 patents · 4 citations
- 244David L. Malotky1 patents · 6 citations
- 251Nancy Delys1 patents · 6 citations
All-time canon
Career PatentIndex Score in C14C
- 199J. Michael Caldwell12 patents · 1,418 citations
- 296Helmut Klimmek10 patents · 491 citations
- 392Frank Krause7 patents · 469 citations
- 488Keith W. Michael7 patents · 223 citations
- 583Loren A. Haluska7 patents · 223 citations
- 679R. Paul Clayton11 patents · 184 citations
- 775Wesley W. Potter11 patents · 184 citations
- 871Terry L. Mcaninch6 patents · 309 citations
- 967Detlef-Ingo Schutze7 patents · 203 citations
- 1063Wilhelm Thoma6 patents · 202 citations
- 1158Josef Pedain7 patents · 191 citations
- 1254James M. Caldwell5 patents · 186 citations
- 1350Dirk M. Coppens8 patents · 188 citations
- 1446Tillmann Hassel7 patents · 220 citations
- 1542Ernst Pfleiderer23 patents · 356 citations
- 1638Juergen Christner17 patents · 227 citations
- 1733Walter Denzinger10 patents · 195 citations
- 1829Rolf Monsheimer15 patents · 222 citations
- 1925Brendan Patrick Purcell11 patents · 65 citations
- 2021David T. Williamson9 patents · 61 citations
- 2117Heinrich Hartmann9 patents · 178 citations
- 2213Robert A. Falk5 patents · 121 citations
- 238Tilman Taeger14 patents · 171 citations
- 244Chetan P. Jariwala6 patents · 169 citations
- 251Herbert Bay5 patents · 124 citations
Rising· last 2 yrs
The top-scoring C14C patents made public in the last 2 years
- 199US11999853B2✦ AIEngineered skin equivalent, method of manufacture thereof and products derived therefrom0 cites · 20240% earned
- 289US12522882B2✦ AILeather surface modification compositions and methods of use thereof0 cites · 20240% earned
- 378US12129524B2✦ AIChrome-free tanning process of ecological leather0 cites · 20240% earned
- 467US12319974B2Use of reactive cross-linking agents for protein-containing substrates and processes for t0 cites · 20240% earned
- 556US12421563B2Leather improving agent0 cites · 20240% earned
- 644US12522883B2Composition and process for waterproofing leather0 cites · 20240% earned
- 733US12378167B2NPK liquid and solid fertilizer, obtaining process, fertilizing compositions and use0 cites · 20240% earned
- 822US12545969B2Process for tanning animal hide0 cites · 20240% earned
- 911US12559805B2Method for producing a multilayer laminar product and plant for implementing said method0 cites · 20240% earned
- 101US12606876B2Preparation method of plant biomass-based active tanning agent0 cites · 2024
Active· last 5 yrs
The top-scoring C14C patents of the last 5 years
- 199US11518905B2✦ AIAqueous leather coating composition6 cites · 202285% earned
- 296US11753690B2✦ AIHide sorting systems and methods3 cites · 202154% earned
- 392US11423274B2✦ AILeather with skin texture having an identification code4 cites · 202282% earned
- 488US11591471B2Engineered skin equivalent, method of manufacture thereof and products derived therefrom2 cites · 202249% earned
- 583US11365457B1Lionfish leather and preparation thereof1 cites · 202267% earned
- 679US11872805B2Inkjet printer for decorating natural leather1 cites · 202267% earned
- 775US12043853B2Use and production of storage-stable neutral metalloprotease0 cites · 20220% earned
- 871US12215088B2Method for the industrial production of 2-halo-4,6-dialkoxy-1,3,5-triazines and their use 0 cites · 20210% earned
- 967US12522882B2Leather surface modification compositions and methods of use thereof0 cites · 20240% earned
- 1063US12385181B2Silk performance apparel and products and methods of preparing the same0 cites · 20230% earned
- 1158US11845998B2Phosphorus acid functionalized coating composition0 cites · 20220% earned
- 1254US12070964B2Decorated leather manufacturing0 cites · 20210% earned
- 1350US11919430B2Encapsulated foil leather transfer0 cites · 20220% earned
- 1446US12232565B2Method of manufacturing a footwear0 cites · 20220% earned
- 1542US12049676B2Method for dyeing and/or retanning of leather0 cites · 20220% earned
- 1638US11905653B2Decorated natural leather0 cites · 20220% earned
- 1733US12084729B2Method of manufacturing decorated leather0 cites · 20210% earned
- 1829US12319973B2Process for the simultaneous tanning and dyeing of collagen containing fibrous material0 cites · 20210% earned
- 1925US11801700B2Decorated natural leather0 cites · 20210% earned
- 2021US11981970B2Leather odor removal composition and method of manufacturing leather with reduced odor usi0 cites · 20220% earned
- 2117US12371580B2Radiation curable inkjet inks0 cites · 20210% earned
- 2213US11739390B2Tanning agent-free leather making method0 cites · 20220% earned
- 238US11260687B2Decorating natural leather0 cites · 20210% earned
- 244US12129524B2Chrome-free tanning process of ecological leather0 cites · 20240% earned
- 251US11702712B2Cationic cyanuric chloride derivative tanning agent and preparation method thereof0 cites · 20220% earned
All-time canon
The defining C14C patents of the whole record
- 199US5876792A✦ AIMethods and apparatus for controlled placement of a polymer composition into a web173 cites · 199988% earned
- 296US5856245A✦ AIArticles of barrier webs165 cites · 199994% earned
- 392US5869172A✦ AIInternally-coated porous webs with controlled positioning of modifiers therein161 cites · 199994% earned
- 488US6040251AGarments of barrier webs159 cites · 200094% earned
- 583US5435808AHide raceway treatment and improved method of curing hides142 cites · 199593% earned
- 679US5580941AGraft copolymers of unsaturated monomers and sugars, a process for the production and the 128 cites · 199684% earned
- 775US5004643ASilicone polymer-internally coated webs125 cites · 199193% earned
- 871US5874164ABarrier webs having bioactive surfaces123 cites · 199993% earned
- 967US5100565AValve of faucet121 cites · 199293% earned
- 1063US5418051AInternally coated webs116 cites · 199590% earned
- 1158US4916171APolymers comprising alkali-insoluble core/alkali-soluble shell and copositions thereof114 cites · 199093% earned
- 1254US5209965AInternally coated webs111 cites · 199390% earned
- 1350US6083602AIncontinent garments106 cites · 200093% earned
- 1446US6179879B1Leather impregnated with temperature stabilizing material and method for producing such le94 cites · 200193% earned
- 1542US7083828B2Process for producing detachable dirt- and water-repellent surface coatings91 cites · 200489% earned
- 1638US4448922ACoagulated polyurethane coating compositions91 cites · 198493% earned
- 1733US5476516AAnticalcification treatment for aldehyde-tanned biological tissue89 cites · 199593% earned
- 1829US5854321AGraft copolymers of unsaturated monomers and sugars, a process for the production and the 86 cites · 199883% earned
- 1925US5912116AMethods of measuring analytes with barrier webs85 cites · 199993% earned
- 2021US6379751B1Imparting water-repellency with polysiloxanes containing carboxyl groups84 cites · 200293% earned
- 2117US5849942AFluoroalkyl-functional organopolysiloxane-containing compositions77 cites · 199886% earned
- 2213US5714082AAqueous anti-soiling composition76 cites · 199893% earned
- 238US4778915AFluoroacrylic monomers and polymers76 cites · 198893% earned
- 244US5472619AWaste water treatment with peracetic acid compositions75 cites · 199593% earned
- 251US5334455AFree-radical curable compositions74 cites · 199493% earned
Rising· last 2 yrs
Assignees whose newest C14C patents became public in the last 2 years — the current frontier
- 199VITROLABS INC7 patents · 32 citations
- 289STAHL INT B V2 patents · 3 citations
- 378ENERGIZER AUTO INC2 patents · 0 citations
- 467UNIV SICHUAN4 patents · 0 citations
- 556FAIRCRAFT1 patents · 0 citations
- 644ARCHROMA SWITZERLAND GMBH2 patents · 0 citations
- 733COS T A S R L1 patents · 0 citations
- 822KAO CORP1 patents · 0 citations
- 911UNIV FEDERAL DE MINAS GERAIS UFMG1 patents · 0 citations
- 101UNIV OF LANCASTER1 patents · 0 citations
Active· last 5 yrs
Sustained C14C output across the last 5 years
- 199ROHM & HAAS31 patents · 636 citations
- 296VITROLABS INC7 patents · 32 citations
- 392NAT BEEF PACKING COMPANY LLC10 patents · 15 citations
- 488DANISCO US INC4 patents · 13 citations
- 583TFL LEDERTECHNIK GMBH8 patents · 18 citations
- 679AGFA NV10 patents · 8 citations
- 775K H EXPORTS INDIA PRIVATE LTD2 patents · 4 citations
- 871DOW SILICONES CORP1 patents · 6 citations
- 967STAHL INT B V2 patents · 3 citations
- 1063CROSSING SRL3 patents · 0 citations
- 1158ECCO SKO AS3 patents · 0 citations
- 1254ENERGIZER AUTO INC2 patents · 0 citations
- 1350SHAANXI UNIV OF SCIENCE & TECHNOLOGY4 patents · 0 citations
- 1446UNIV SICHUAN4 patents · 0 citations
- 1542LEAR CORP3 patents · 0 citations
- 1638FAIRCRAFT1 patents · 0 citations
- 1733QUINTESSENCE MARINE INC1 patents · 1 citations
- 1829ARCHROMA SWITZERLAND GMBH2 patents · 0 citations
- 1925HYUNDAI MOTOR CO LTD2 patents · 0 citations
- 2021EVOLVED BY NATURE INC1 patents · 0 citations
- 2117BEKEN ITALIA S R L1 patents · 0 citations
- 2213COS T A S R L1 patents · 0 citations
- 238CURTIDOS TREVINO S A DE C V1 patents · 0 citations
- 244EGAS CONSULTING SOC A RESPONSABILITA LIMITATA SEMPLIFICATA1 patents · 0 citations
- 251HIROCA AUTOMOTIVE TRIM CORP1 patents · 0 citations
All-time canon
All-time PatentIndex Score in C14C
- 199NEXTEC APPLICATIONS INC14 patents · 1,252 citations
- 296STOCKHAUSEN CHEM FAB GMBH22 patents · 586 citations
- 392DOW CORNING17 patents · 287 citations
- 488MONFORT INC9 patents · 212 citations
- 583MINNESOTA MINING & MFG14 patents · 538 citations
- 679BAYER AG71 patents · 1,133 citations
- 775ROHM & HAAS31 patents · 636 citations
- 871BIRKO CORP6 patents · 309 citations
- 967BASF AG74 patents · 890 citations
- 1063CIBA GEIGY CORP26 patents · 364 citations
- 1158ROEHM GMBH35 patents · 494 citations
- 1254DU PONT10 patents · 178 citations
- 13503M INNOVATIVE PROPERTIES CO10 patents · 202 citations
- 1446MODERN MEADOW INC11 patents · 65 citations
- 1542HENKEL KGAA41 patents · 373 citations
- 1638HOECHST AG13 patents · 154 citations
- 1733SANDOZ LTD14 patents · 106 citations
- 1829HUELS CHEMISCHE WERKE AG3 patents · 207 citations
- 1925COUNCIL SCIENT IND RES18 patents · 81 citations
- 2021HENKEL CORP5 patents · 75 citations
- 2117XEROS LTD8 patents · 61 citations
- 2213VITROLABS INC7 patents · 32 citations
- 238UNION CARBIDE CORP4 patents · 81 citations
- 244SCHAEFER PHILIPP5 patents · 55 citations
- 251SETON CO5 patents · 44 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth