Inventor · disambiguated record
Charles D. Spragg
Also filed as: SPRAGG CHARLES D
20 granted patents·1 pending application·433 citations·filing 1989–2003
96Inventor score
Files withBRIDGESTONE FIRESTONE NORTH AM8BRIDGESTONE FIRESTONE RES INC6BRIDGESTONE CORP3BRIDGESTONE FIRESTONE INC3
Top patents by PatentIndex Score
21 records- 0187US5267847ACompact precision extrusion systemBRIDGESTONE CORP·Filed 1992·Granted Dec 7, 1993·63 cites·15 claims
- 0287US5156781ACompact precision extrusion methodBRIDGESTONE CORP·Filed 1990·Granted Oct 20, 1992·65 cites·16 claims
- 0385US5879484ARun flat banded pneumatic tireBRIDGESTONE FIRESTONE INC·Filed 1997·Granted Mar 9, 1999·54 cites·25 claims
- 0482US6460586B1Multi-region band element for run flat tireBRIDGESTONE FIRESTONE NORTH AM·Filed 2000·Granted Oct 8, 2002·25 cites·17 claims
- 0578US6405773B1Run flat pneumatic tire and band element thereforBRIDGESTONE FIRESTONE NORTH AM·Filed 2000·Granted Jun 18, 2002·16 cites·12 claims
- 0678US6321808B1Expandable band for run flat tire and method of makingBRIDGESTONE FIRESTONE RES INC·Filed 2000·Granted Nov 27, 2001·16 cites·14 claims
- 0777US6598634B1Cured tire including encapsulated high modulus compositeBRIDGESTONE CORP·Filed 1999·Granted Jul 29, 2003·33 cites·18 claims
- 0873US4918017AScreen assembly for screening elastomeric materialBRIDGESTONE FIRESTONE INC·Filed 1989·Granted Apr 17, 1990·29 cites·17 claims
- 0968US6436215B1Band element for pneumatic tire and method of making sameBRIDGESTONE FIRESTONE NORTH AM·Filed 2000·Granted Aug 20, 2002·8 cites·2 claims
- 1067US6834696B1Runflat tire with cantilever-like sidewall constructionBRIDGESTONE FIRESTONE NORTH AM·Filed 2000·Granted Dec 28, 2004·9 cites·36 claims
- 1167US5769980APneumatic tire with sidewall inserts having specified extension underneath the belt packageBRIDGESTONE FIRESTONE INC·Filed 1996·Granted Jun 23, 1998·25 cites·21 claims
- 1266US6470937B1Run flat pneumatic tire and anticlastic band element thereforBRIDGESTONE FIRESTONE NORTH AM·Filed 2000·Granted Oct 29, 2002·11 cites·12 claims
- 1363US6148885APneumatic tire with band elementBRIDGESTONE FIRESTONE RES INC·Filed 1998·Granted Nov 21, 2000·18 cites·8 claims
- 1461US6439288B1Pneumatic tire with variable thickness band elementBRIDGESTONE FIRESTONE NORTH AM·Filed 2000·Granted Aug 27, 2002·8 cites·13 claims
- 1557US6117258ABand element and method for building same for a run flat banded tireBRIDGESTONE FIRESTONE RES INC·Filed 1998·Granted Sep 12, 2000·14 cites·13 claims
- 1656US6769294B2Method of determining potential cause of tire failure by measuring the tire temperature achieved during operating conditionsBRIDGESTONE FIRESTONE NORTH AM·Filed 2001·Granted Aug 3, 2004·6 cites·34 claims
- 1754US6260593B1Race tire containing band elementBRIDGESTONE FIRESTONE RES INC·Filed 1999·Granted Jul 17, 2001·16 cites·12 claims
- 1852US6112791APneumatic tire with band element having tapered end portionsBRIDGESTONE FIRESTONE RES INC·Filed 1998·Granted Sep 5, 2000·13 cites·13 claims
- 1951US6420005B1Band element for pneumatic tireBRIDGESTONE FIRESTONE NORTH AM·Filed 2000·Granted Jul 16, 2002·2 cites·1 claims
- 2048US6363986B1Band element and method for building same for a run flat banded tireBRIDGESTONE FIRESTONE RES INC·Filed 2000·Granted Apr 2, 2002·2 cites·9 claims
- 2130US2004055686A1Tire components having improved durabilityFiled 2003·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Charles D. Spragg files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →