Patent ID: 7750165

Claim:
A crystalline Metaxalone Form B exhibiting an X-ray (powder) diffraction pattern characterized by 2θ±2 angles and d values as represented in the following table: Angle (° 2θ) d-value (° A) 10.261 8.61422 11.244 7.86292 14.189 6.23687 15.696 5.64131 16.275 5.44197 16.643 5.32239 17.294 5.12360 18.550 4.77930 19.009 4.66497 19.499 4.54890 20.723 4.28280 21.593 4.11209 22.404 3.96508 23.768 3.74063 24.529 3.62615 25.238 3.52594 25.759 3.45585 26.442 3.36811 27.076 3.29066 27.699 3.21796 28.176 3.16469 29.668 3.00878 29.989 2.97733 30.850 2.89609 31.613 2.82793 32.693 2.77245 34.240 2.61675 35.432 2.53142 37.028 2.42586 37.511 2.39574.