Today, dozens of once secretive Apple Watch inventions flooded the U.S. Patent and Trademark Office covering everything from user interfaces through to various aspects of their heart rate monitor and far beyond. This is the largest one day collection of patents for a single device that we have on record. If you ever wanted to know the ins and outs of Apple Watch, then Patently Apple's report will make your day.

Thirty-One Apple Watch Patent Applications

ONE: PACING ACTIVITY DATA OF A USER

TWO: LOCAL MODEL FOR CALORIMETRY

THREE: METHOD TO ESTIMATE PHYSICAL ACTIVITY RATING FROM PEDOMETER DATA

FOUR: PHYSICAL ACTIVITY AND WORKOUT MONITOR

FIVE: METHOD AND SYSTEM TO CALIBRATE FITNESS LEVEL AND DIRECT CALORIE BURN USING MOTION, LOCATION SENSING, AND HEART RATE

SIX: CONTEXT-AWARE HEART RATE ESTIMATION

SEVEN: ACCURATE CALORIMETRY FOR INTERMITTENT EXERCISES

EIGHT: SENSOR FUSION APPROACH TO ENERGY EXPENDITURE ESTIMATION

NINE: TERRAIN TYPE INFERENCE FROM WEARABLE WITH MOTION SENSING

TEN: METHOD AND SYSTEM TO ESTIMATE DAY-LONG CALORIE EXPENDITURE BASED ON POSTURE

ELEVEN: MULTIPLE LIGHT PATHS ARCHITECTURE AND OBSCURATION METHODS FOR SIGNAL AND PERFUSION INDEX OPTIMIZATION

TWELVE: REFLECTIVE SURFACES FOR PPG SIGNAL DETECTION

THIRTEEN; LATENT LOAD CALIBRATION FOR CALORIMETRY USING SENSOR FUSION

FOURTEEN: HIGH STRENGTH RETENTION LOOPS FOR WEARABLE BANDS

FIFTEEN: WEARABLE ELECTRONIC DEVICE

SIXTEEN: REDUCED-SIZE INTERFACES FOR MANAGING ALERTS

SEVENTEEN: ELECTRONIC TOUCH COMMUNICATION

EIGHTEEN: REDUCED SIZE USER INTERFACE

NINETEEN: MUSIC USER INTERFACE

TWENTY: STOPWATCH AND TIMER USER INTERFACES

TWENTY-ONE: REDUCED-SIZE USER INTERFACES FOR DYNAMICALLY UPDATED APPLICATION OVERVIEWS

TWENTY-TWO: USER INTERFACE FOR LIMITING NOTIFICATIONS AND ALERTS

TWENTY-THREE: MULTI-DIMENSIONAL OBJECT REARRANGEMENT

TWENTY-FOUR: BUTTON FUNCTIONALITY

TWENTY-FIVE: IMAGE DISPLAY AND INTERACTION USING A MOBILE DEVICE

TWENTY-SIX: CAMERA REMOTE CONTROL

TWENTY-SEVEN: CAMERA REMOTE USER INTERFACE

TWENTY-EIGHT: APPLE WATCH PHONE USER INTERFACE

TWENTY-NINE: APPLE WATCH ELECTRONIC MESSAGE USER INTERFACE

THIRTY: CAPACITIVELY BALANCED INDUCTIVE CHARGING COIL

THIRTY-ONE: OPERATING AN INDUCTIVE ENERGY TRANSFER SYSTEM

Patently Apple presents a detailed summary of patent applications with associated graphics for journalistic news purposes as each such patent application is revealed by the U.S. Patent & Trade Office. Readers are cautioned that the full text of any patent application should be read in its entirety for full and accurate details. About Making Comments on our Site: Patently Apple reserves the right to post, dismiss or edit any comments. Comments are reviewed daily from 5am to 6pm MST and sporadically over the weekend.