Richard MacDuff

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Newark, DE, US

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Patents Grantslast 30 patents

Information Patent Grant
Yarn structure having main filaments and tie filaments
- Patent number 4,274,251
- Issue date Jun 23, 1981
- Hercules Incorporated
- Charles W. Kim
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Network structures and methods of making same
- Patent number 4,207,375
- Issue date Jun 10, 1980
- Hercules Incorporated
- Charles W. Kim
- D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information Patent Grant
Network structures and methods of making same
- Patent number 4,186,781
- Issue date Feb 5, 1980
- Hercules Incorporated
- Charles W. Kim
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of making network structures
- Patent number 4,101,358
- Issue date Jul 18, 1978
- Hercules Incorporated
- Charles W. Kim
- D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS