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PCE
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DIFF Subgroup
A61K 31/715

Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters

Introduced: July 1974

Full Title

Full titles differ between systems:

IPC:

Medicinal preparations containing organic active ingredients > Carbohydrates; Sugars; Derivatives thereof > Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters

CPC:

Medicinal preparations containing organic active ingredients > Carbohydrates; Sugars; Derivatives thereof (sorbitol A61K31/047) > Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters

IPC and CPC are identically structured here. All 11 subcodes exist in both systems.

3 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2000.

Child Classifications

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  • A61K 31/729 Agar; Agarose; Agaropectin since 2000 IPC+CPC Available in IPC and CPC
  • A61K 31/731 Carrageenans since 2000 IPC+CPC Available in IPC and CPC
  • A61K 31/732 Pectin since 2000 IPC+CPC Available in IPC and CPC
  • A61K 31/733 Fructosans, e.g. inulin since 2000 IPC+CPC Available in IPC and CPC
  • A61K 31/734 Alginic acid since 2000 IPC+CPC Available in IPC and CPC
  • A61K 31/736 Glucomannans or galactomannans, e.g. locust bean gum, guar gum since 2000 IPC+CPC Available in IPC and CPC
  • A61K 31/737 Sulfated polysaccharides, e.g. chondroitin sulfate, dermatan sulfate (A61K31/727 takes precedence) since 2000 IPC+CPC Available in IPC and CPC
  • A61K 31/738 Cross-linked polysaccharides since 2000 IPC+CPC Available in IPC and CPC
  • A61K 31/739 Lipopolysaccharides since 2000 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class A61,2013–2023, worldwide · Source: EPO PATSTAT

  1. PHILIPS ELECTRONICS NL 18,523
  2. NOVARTIS CH 14,253
  3. COVIDIEN US 13,953
  4. ROCHE CH 12,005
  5. CHINESE ACADEMY OF SCIENCES 11,955
  6. UNIVERSITY OF CALIFORNIA US 11,692
  7. HARVARD UNIVERSITY US 11,596
  8. L'OREAL FR 11,593
  9. P&G (PROCTER & GAMBLE COMPANY) US 11,297
  10. OLYMPUS CORPORATION JP 9,594

Top Applicants (CPC)

Class A61,2013–2023, worldwide · Source: EPO PATSTAT

  1. PHILIPS ELECTRONICS NL 20,621
  2. NOVARTIS CH 15,792
  3. ROCHE CH 14,303
  4. COVIDIEN US 13,862
  5. HARVARD UNIVERSITY US 13,454
  6. UNIVERSITY OF CALIFORNIA US 12,798
  7. P&G (PROCTER & GAMBLE COMPANY) US 12,140
  8. L'OREAL FR 11,800
  9. OLYMPUS CORPORATION JP 9,894
  10. BOSTON SCIENTIFIC SCIMED US 9,513